January 15, 2025
BRAND NEW Blue Carbon Fiber End-Caps For Your 4-Stroke Exhaust
Our loyal customers have been asking for this one for a while now, and we are finally rolling it out, starting with the Blue Carbon Fiber. These are available in both the 4.5" hole 1.75 and also the 4.5" hole 1.50.
Pro Circuit. We Race.
January 15, 2025
Introducing 2025 KX250/KX450 Throttle Tubes!
The Pro Circuit Throttle Tubes are CNC-machined from aluminum and have a Teflon coating on the inside. This helps reduce friction and allows for a smoother twist of the throttle.
Pro Circuit. We Race.
January 15, 2025
2025 KX250 High-Compression Pistons are In Stock!
Pro Circuit High-Compression Pistons deliver enhanced power across all RPM's, performing equally well in stock and modified engines. They boost low end torque and maximize top-end power - A win-win.
Pro Circuit. We Race.
January 15, 2025
Radiator Hose Kits Available for 2024-2025 KX450
Our radiator hose kits feature premium-grade silicone, which can operate at higher temperatures and pressures than a stock rubber hose. The hoses are topped off with a highly pigmented bright blue that will stay vibrant and not fade over time, making the Pro Circuit Standard Radiator Hose Kit the perfect way to customize the look of your bike while still increasing its performance and functionality.
There is also a Y kit designed to eliminate the plastic "Y" elbows found in other readiator hoses. These elbows often melt in extreme conditions, but the Pro Circuit Y Hoses are lighter and can withstand expanding when hot.
Pro Circuit. We Race.
December 9, 2024
Ti-2 Shorty Blue Carbon is Available for Yamaha 125 and 250 Two Stroke Models
It's finally time! We heard your requests, and our R&D team has answered! After perfecting the color carbon quality and capability on our Ti-2 R-304 silencer, riders can now enjoy both looks and performance on their YZ250/X and YZ125/X dirt bikes.
For riders unfamiliar with our silencer's model, the Ti-2 is similar to the popular R-304 Silencer, except it is constructed with a blue carbon Kevlar shell, titanium tubing, and titanium end-caps. The titanium and carbon Kevlar construction offers the "factory" look and appearance while reducing weight. The Ti-2 is intended for closed-course racing.
Pro Circuit. We Race.
December 9, 2024
Quality Bike Stands Available in Standard, Super-Mini, and Mini Bike Sizes
There's no question that a happy dirt bike is a bike that has found its home on a stand. Because of its durability and lightweight design, the Pro Circuit Works Stand has been a factory favorite for many years. Our stands feature a non-slip rubber top and are built from extruded aluminum. They can also be paired with accessory side panels for the ultimate factory look. These stands are built to last!
Pro Circuit. We Race.
November 11, 2024
NEW 2025 KTM 85 Pipes and Silencers
The 2025 parts are coming in and going out so fast that we can barely keep up. The latest products to have arrived (with some not making it to the site yet) are the KTM/Husqvarna/GasGas 85 products. That includes the Works Pipe and Platinum Pipes, along with four silencers to choose from - the Ti-2 Shorty, the R-304 Silencer, the 304 Silencer, and the Type 296 Spark Arrestor SIlencer. If the part you are looking for isn't on the site, give us a call (951-738-8050), and we'll see if we can set you up with one before they hit the site.
Pro Circuit. We Race.
November 11, 2024
NEW 2025 KX250 Linkage System
If you're ready to grab a small but mighty part for your 2025 KX250 and 2024-2025 KX450, it's got to be the Kawasaki Linkage System, which offers enhanced handling and performance. By adjusting suspension geometry, the system provides smoother transitions, increased rear-wheel traction, and improved stability in various conditions. This linkage kit is designed to refine the bike's handling characteristics, especially for riders seeking more control in high-speed and technical sections.
Pro Circuit. We Race.
November 7, 2024
NEW 2024 KX450 Camshaft Upgrade
You can always expect the best performance parts from Pro Circuit and the new Camshafts for your 2024 KX450 will not disappoint. The new camshafts provide superior performance upgrades over stock (HP/Torque) by optimizing the lobe profile for increased lift and duration. The new 2024 KX450 Camshafts are a must-have upgrade for any serious racer wanting to separate themselves from the rest of the pack.
Pro Circuit. We Race.
October 15, 2024
Honda CRF250R Pro Circuit Exhausts Rolling to the Website
Upgrading to a Pro Circuit exhaust on your 2025 Honda CRF250R/RX dirt bike offers significant performance advantages, enhancing power delivery and overall rideability. Whether you choose a Ti-6 Pro, Ti-6, T-6, or T-6 Slip-On, the high quality exhaust systems are designed to improve airflow, resulting in increased horsepower and torque across the RPM range.
On the Ti-6 Pro and Ti-6 models, the lightweight titanium construction not only reduces weight, helping to improve handling and agility, but also contributes to a more responsive throttle feel. The Ti-6 Pro's advanced design also optimizes sounds levels, providing a deep, throaty roar while adhering to noise regulations. The T-6 systems offer the same benefits as our popular Ti-6 Titanium Exhaust System, while the T-6 is contructed of stainless steel and aluminum for increased strength and durability while giving riders a more affordable altrernative to titanium. Whatever your choice, it's a worthy upgrade for any serious rider.
Pro Circuit. We Race.
October 12, 2024
The Scott x Pro Circuit Prospect Goggle
The Scott x Pro Circuit Prospect Goggle results from the long-standing partnership between the two brands, With a stylish PC design. The scott Prospect goggle offers a massive field of vision, ensuring an unobstructed view while riding. It features Scott's Lens Lock System, which securely holds the lens in place to prevent detachment even during rough conditions. The no-slip silicone strap ensures that the goggle stays in place on the helmet, and its triple layer foam provides comfort and effective sweat absorption. This model is also equipped with a large lens with 100% UV protection, safeguarding your eyes from harmful rays while maintaning clarity.
Pro Circuit. We Race.
October 12, 2024
2025 KX250 Titanium Intake Valves Now Available
The Pro Circuit Intake Valves for the 2025 KX250 are engineered to enhance performance by opitimizing airflow and combustion efficiency. These high-quality valves are designed with precision and are made from durable materials, ensuring increased durability and reduced weight compared to stock options. The improved design allows for greater throttle response and power delivery across the RPM range, making them an ideal upgrade for riders looking to maximize their bike's performance on the track. With easy installation and a perfect fit, Pro Circuit Intake Valves are a smart choice for both amateur and professional racers seeking a competitive edge.
Pro Circuit. We Race.
September 9, 2024
New 2024 Kawasaki KX450 Linkage System
Elevate your 2024 Kawasaki KX450's performance with the Pro Circuit Linkage System. Designed for serious racers and motocross enthusiasts, this system optimizes your bikes handling by lowering the chassis, enhancing rear wheel traction, and reducing the "harsh" mid stroke feel. Crafted from high strength billet aluminum, it ensures durability without adding unnecessary weight. Whether tackling whoops or carving tight corners, the Pro Circuit Linkage System delivers smoother, more controlled suspension action, giving you the competetive edge on any track. Transform your ride into a race-winning machine with this must-have upgrade!
Pro Circuit. We Race.
September 9, 2024
Now Available: Honda CRF450R Radiator Hose
Upgrade your Honda CRF450's cooling system with the Pro Circuit Standard Radiator Hose Kit, designed for 2021-2024 models. Built to endure the most demanding riding conditions, this kit features high-quality silicone hoses that offer superior heat resistance and durability compared to stock hoses. The precision-engineered design improves coolant flow and reduces risk of overheating, ensuring your bike performs at its peak even under the most demanding circumstances. With a sleek, factory-like finish, this hose kit enhances your bike's reliability and adds a professional look to your ride. Keep your enigne cool and your performance hot with Pro Circuit's premium radiator hose kit
Pro Circuit. We Race.
August 10, 2024
Honda CRF250R Engine Kit Now in Stock
A Pro Circuit Engine Performance Package is a surefire way to know you're getting the most out of your engine. The recently released package for the 2022-2024 Honda CRF250R includes a High-Compression Piston Kit from JE Pistons, Camshaft, and Valve Springs, with each part designed and tested to complement each other for significant engine performance gain at all RPM levels. These specially designed Engine Performance Packages are only available while supplies last.
Pro Circuit. We Race.
August 10, 2024
New 2024 KTM 50SX Exhaust
The highly popular 2024 KTM 50 SX machine now has two new Pro Circuit products that can easily upgrade the bike's look and performance. Once a Pro Circuit Works Pipe is installed, riders quickly notice an increase in horsepower and torque gains across the entire RPM range. The unplated, oiled metal finish requires some maintenance but really gives your bike that "Works Look."
The R-304 Silencer was developed as a full-race two stroke silencer. The compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing only. Hex-head screws are used to secure the inlet cap and can be removed easily for quick re-packing of the silencer. With the addition of these two products, young racers will be ready for the next gate drop!
Pro Circuit. We Race.
July 14, 2024
New Limited Edition 2024 Mammoth Hat
Our team recently returned from an awesome trip to the Mammoth Motocross event, and they were able to return with a limited amount of special edition 2024 Mammoth Motocross Pro Circuit hats. We have a limited supply, so act fast! You can get your Mammoth Hat by placing an order over the website or by calling us at 951-738-8050. They are a steal at just $20!
Pro Circuit. We Race.
June 10, 2024
NEW Throttle Tubes for KTM, Husqvarna, and GasGas Models
Ready for a smoother twist of the throttle? Pro Circuit has just released its Throttle Tubesfor the 2024 KTM 250SX-F, KTM 450SX-F, Husqvarna FC 250, Husqvarna FC 450, GasGas MC 250, and GasGas MC 450. The tubes are CNC-machined out of aluminum and the inside is Teflon-coated to reduce friction, resulting in a smoother twist of the throttle. That's a win in our book! Grab yours today.
Pro Circuit. We Race.
May 2, 2024
New Vibram Available For 2024 KX450
Vibram Kit for Kawasaki - Small But Mighty Part to Add
Over the past few years, our Monster Energy Pro Circuit Kawasaki team has partnered with Vibram, a company out of Italy that has helped provide some of the best grip products around. They were so good that we wanted to be able to sell them to our customers. We now have several kits available, including the newest drop of the 2024 Kawasaki KX450. The exclusive Vibram rubber accessory helps guarantee maximum grip for enhanced bike handling. It comprises self-adhesive side layers that are easy to apply and a noticeable addition to the factory team bikes.
Pro Circuit. We Race.
May 2, 2024
New A-Kit Has Arrived!
Honda A-Kit Suspension
If you follow us at @ProCircuit78, you may have noticed a recent product drop - the Honda A-Kit Suspension. It's really hard to ignore the pure beauty of the forks, and as a set, they will maximize your Honda's handling. We've been waiting a while for these to come through the warehouse, so don't wait - they will be quick to go once the word hits the streets that they are available to the public.
Pro Circuit. We Race.
May 2, 2024
New Pistons Have Arrived!
Pro Circuit High-Compression Piston Just In For The 2024 KX450 and 2022 KTM250F
The Pro Circuit High-Compression kit stands as a principle of performance enhancement, and we have just recieved the latest kits for the 2024 Kawasaki KX450 and KTM 250F. Designed to integrate into both stock and modified engines seamlessly, this upgrade delivers an unparalleled surge in power across every RPM range. With a keen focus on augmenting low-end torque and top-end power, riders can expect an electrifying acceleration and enhanced overall performance. The package comprises essential components, including the piston, rings, coated wrist pin, and circlips, ensuring a comprehensive solution tailored to elevate your riding experience.
Pro Circuit. We Race.
April 13, 2024
New Pistons Have Arrived!
Pro Circuit High-Compression Piston Just In For The 2024 KX450 and 2022 KTM250F
The Pro Circuit High-Compression kit stands as a principle of performance enhancement, and we have just recieved the latest kits for the 2024 Kawasaki KX450 and KTM 250F. Designed to integrate into both stock and modified engines seamlessly, this upgrade delivers an unparalleled surge in power across every RPM range. With a keen focus on augmenting low-end torque and top-end power, riders can expect an electrifying acceleration and enhanced overall performance. The package comprises essential components, including the piston, rings, coated wrist pin, and circlips, ensuring a comprehensive solution tailored to elevate your riding experience.
Pro Circuit. We Race.
April 13, 2024
New Pipes and Silencers for the 2024 KTM 65
If you want to enhance your all-new 2024 KTM 65, you're just a click away from finding the best pipes and silencers trusted by racers worldwide.
Riders have several options when it comes to two-stroke pipes and silencers. For the pipe, it's all about what look you're trying to achieve, whether it be the unplated, oiled metal finish of the Works Pipe or the Platinum Pipe that offers the same performance gains as the Works but reduces the rider maintenance and helps protect the pipe from nature's elements. Both pipes will increase horsepower and provide noticeable torque gains across the entire RPM range. Each pipe is hand-welded with pounded seams.
When it comes to your selection of silencers, riders can choose the exact application that works for their riding conditions. First is the R-304 silencer, developed as a full-race two-stroke silencer. The compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing only. Hex head screws are used to secure the inlet cap and can be removed easily for quick re-packing of the silencer.
The Ti-2 is similar to the popular R-304 Silencer, except it is constructed with a carbon Kevlar shell, titanium tubing, and titanium end caps. The titanium and carbon Kevlar construction offers the "factory" look and appearance while reducing weight. The Ti-2 is for closed-course racing only.
The 304 silencer is recommended for most two-stroke applications. It's slightly longer body offers added top-end performance while reducing noise output. The brushed aluminum body, stainless steel inlet tube, and end cap give you a silencer that looks as good as it performs.
Pro Circuit. We Race.
February 20, 2024
New Kid's Tees Have Arrived
Two New Pro Circuit Kid's Tee Shirts
Introducing two exciting Pro Circuit Tees to kick off the Kid's collection the "Original Stripes Tee" and "Moto Hero Tee." The "Original Stripes Tee" pays homage to the brand's roots with its classic design showcasing the Original Pro Circuit logo. The shirt comes in a sleek black color, adding a touch of timeless style to any young rider's wardrobe. On the other hand, the "Moto Hero Tee" captures the spirit of motocross with a dynamic graphic featuring a Pro Circuit rider at the center. This shirt comes in a stylish dark heather shade, creating a cool and edgy look for young motocross enthusiasts. Both tees are available in a range of sizes from Youth XS to Youth Large, ensuring a comfortable fit for riders of all ages. Elevate your little one's motocross style with these Pro Circuit Kids Tees, combining heritage and contemporary flair in every stitch.
Pro Circuit. We Race.
February 20, 2024
New Pro Circuit Cylinder Head Cover and Airboot
Honda CRF110 Cylinder Head Cover and 2009-2023 KTM 65SX Airboot
Introducing the Pro Circuit CRF 110 Cylinder Head Cover, meticulously crafted to enhance performance and style for Honda CRF 110 models spanning from 2012 to 2023. Precision-machined from premium aircraft-grade aluminum, this head cover is built for durability and boasts a striking anodized red finish, hand-polished to perfection, delivering an authentic.
The Pro Circuit Airboot represents a pinnacle of innovation in motorcycle performance enhancement, boasting a design meticulously crafted by the Pro Circuit race team alongside other industry experts. This airboot has been updated for the KTM 2009 - 2023 KTM 65 SX model and is engineered to elevate the capabilities of your motorcycle. Its primary objective lies in optimizing the intake track, strategically shaping the airflow to harness the power of the "intake wave." By doing so, the Pro Circuit Airboot maximizes airflow into the motor, resulting in a notable surge in horsepower.
Pro Circuit. We Race.
January 12, 2024
We Have the Best In T-Handles
Pro Circuit T-Handle Wrench Holder
Pro Circuit has been carrying a variety of high-quality tools for many years, and we wanted to call out a few that you might be interested in adding or replacing now that race season is upon us. If you don't have a good set of T-Handles, the Kowa T-Handle 7-Piece Set is an excellent place to start. Factory mechanics throughou the paddock use these tools because of their superior quality. Included are the 8, 10, 12, 14, and 17mm wrenches and the #2 and #3 Phillips screwdriver heads. There is also another Kowa set that we offer in the Hex Wrench T-Handle. This set includes 4, 5, 6, and 8mm socket end wrenches to fit just about any fastener on your dirt bike.
If you're looking to add more specific T-Handles, Pro Circuit also has a Kowa short handle 8mm T-Handle and a Kowa 3/8th Drive T-Handle to allow for use of any 3/8th drive attachment sockets like hex drives, swivels and more.
Pro Circuit carries many more tools and lubricants that can be handy when maintaining your machine - bolt kits, seal and o-ring grease, and shock fluid, to name just a few.
Now that we've shown you the high-quality T-Handles that Pro Circuit sells, you're ready to see the handy T-Handle Holder that will keep all your essential tools easily accessible. The Pro Circuit T-Handle Holder is lightweight aluminum and designed to hang from your toolbox, where it will hold your complete set of t-handle tools. Thanks to the holder, our Monster Energy Pro Circuit Kawasaki team enjoys the ease of storing and using their T-Handles throughout the day.
Pro Circuit. We Race.
December 7, 2023
2024 Kawasaki KX450 and 2024 KTM300 XC-W
Race Performance Exhausts for 2024 KTM300 XC-W and KX450 Models
We have recently received the newest pipes for the 2024 Kawasaki KX450 and the 2024 KTM 300 XC-W. For the KX450, we have stocked up on the Ti-6 Pro and Ti-6 exhausts, one of our most popularexhaust models. The Ti-6 Titanium Exhaust System is designed to improve performance and is constructed of titanium throughout the head pipe, mid pipe, and canister, while the end-cap is made of carbon fiber. It's ready to give you gains where you want them. For those looking for our very durable stainless steel models, we also have the T-6 and T-6 Slip On in stock.
2024 KTM 300 XC-W owners can level up their game with the Works Pipe and various silencers. The Works Pipe and the Platinum Pipe will increase horsepower, and the torque gains will quickly be noticed across the entire RPM range. The unplated, oiled metal finish requires some maintenance but gives your bike that "Works Look"' while the Platinum Pipe is a unique fusion of power, elegance, and utility.
For the R-304 Silencer, it was developed as a full-race two-stroke silencer. The compact design of our R-304 Silencer offers optimum performance gains and is the top choice for racers who are serious about winning. The Ti-2 R-304 Silencer is similar to the popular R-304 Silencer except it is constructed with a carbon Kevlar shell, titanium tubing, and titanium end-caps. Another silencer option is the 304 Silencer, which is recommended for the most two-stroke applications. The brushed aluminum body and stainless steel inlet tube and end-cap gives you a silencer that looks as good as it performs. The Type 296 Silencer is a quiet spark arrestor that should be used when riding in noise-sensitive areas or any National Forest.
Pro Circuit. We Race.
December 7, 2023
Four All-New Pro Circuit New Era Hats!
Four New Pro Circuit Baseball Stlye New Era Hats
Pro Circuit has just released four all-new hats from New Era and there is sure to be one that catches your eye. Two are available in a lighter off-white color - The PC Chrome Walnut Snapback with a "baseball style" logo and the PC Chrome Black Snapback for that retro logo look. The third hat comes in baby blue and has been dubbed the PC Sky Black Cardina Snapback. Our final hat is the sharp looking PC Black Neon Green Snapback.
All hats feature a Pro Circuit 50th anniversary logo on the side and a dirt bike rider emblem on the back.
Pro Circuit. We Race.
November 7, 2023
Calling 1986 Honda CR500 Owners - We've got something for you
CR500 Pipe and Silencer
Pro Circuit fans are big into their racing history, and one of those historical bikes is the 1986 Honda CR500. We ran special edition RJ Honda CR250 kits in the past and now are bringing our customers a new kit with the Works Pipe and the Factory Sound Silencer for the CR500. The Works Pipe increases horsepower and torque gains, while the 304 Factory Sound Silencer adds top end performance while reducing noise output. These are just the things to take your vintage Honda to the next level.
Pro Circuit. We Race.
November 7, 2023
Pro Circuit and Monster Energy x Pro Circuit Umbrellas
Rainy/Sunny Day Getaway
We recently received our latest inventory of umbrellas, which includes two different styles. The first is a traditional Pro Circuit look. Additionally, there is an option for those interested in representing Monster Energy and Pro Circuit. Whatever your style, a Pro Circuit umbrella will keep you protected from the elements.
Pro Circuit. We Race.
October 2, 2023
All-New Kawasaki KX250 Engine Package and KOWA T-Handles
If you're serious about performance and have a 2023 Kawasaki KX250 in your garage, Pro Circuit has just delivered one of the best upgrades you can get with its Engine Performance Package. This all-new package includes our high-compression piston kit, camshaft, and valve springs. Each part has been designed and tested to complement each other for significant engine performance gain at all RPM levels.
For those ready to upgrade their T-Handle set, we highly recommend reaching for some of the best in the business - the Kowa T-Handles out of Japan. Whether you need to get started with the Kowa Seven-Piece Set, want an upgrade with the Kowa Four-Piece Set, or are looking for a single T-Handle, we've got you covered.
Pro Circuit. We Race.
October 2, 2023
1989 Yamaha YZ250 and Honda CR250R Works Pipes
We have some really loyal fans, and they often include some of the best bike restorers in the business. Many look to Pro Circuit to make sure their bikes turn out top-notch, and now owners of a 1989 Yamaha YZ250 or 1987 Honda CR250R can grab a Pro Circuit Works Pipe, now back in stock! We make limited quantities of these older models, so grab one now or be a hero and tell your buddy so they can get a serious upgrade today!
Pro Circuit. We Race.
September 1, 2023
Exhausts for GasGas/Husqvarna/KTM 450 Bikes Now Available
Including KTM 125
The wait is over for KTM, GasGas, and Husqvarna riders, as Pro Circuit has just received its latest offerings for the 2023 bikes. Riders have several options based on their riding adventures. The Ti-6 Titanium Exhaust is ideal for any closed-course or off-road racer looking for improved performance, durability, and a professional look (some sound inspections need the Ti-6 Pro option). The T-6 Stainless Exhaust provides the same performance with a durable stainless steel construction, while the T-6 Slip-On is the perfect upgrade for someone looking for a less expensive option with excellent output.
For our two-stroke friends, the 2024 KTM125 is ready for an upgrade with the release of both the Works and Platinum Pipes. Both pipes offer unparalleled performance and power for every two-stroke application. It's time to decide which look you're going for! And why not pair it with a silencer, like our R-304 or 304 options. Let's go!
Pro Circuit. We Race.
September 1, 2023
Additional For Sale Bikes Now Listed!
It's time to grab your next bike with upgrades already included! We've just released a good list of bikes available for sale on our website. We have big bikes, like the KX250 and KX450, and mini bikes, like the KX85. Several bikes have already been scooped up, so if you're in the market, call us today at (951)738-8050.
Pro Circuit. We Race.
September 1, 2023
Ethika x Pro Circuit Underwear is Now Available
Our race team has already been lucky enough to be sponsored by Ethika for some time now, and this year, we came together to come up with two designs just for you - our Pro Circuit fans! Not only are there two designs, but they also make men's and youth sizes. So now it's just a matter of choosing between the Volt and the Wild Ride designs. Some sizes are going fast, so act quickly.
Pro Circuit. We Race.
April 29, 2022
Pro Circuit Exhaust Replacement Stickers
Replacement Colored Sticker Kits for All Pro Circuit 4-Stroke Exhaust
Every motorcycle rider is unique. This is why Pro Circuit has created an exclusize lineup of Replacement Exhaust Sticker Kits to fit each unique rider. Available colors include Dark Blue, Gray, Green, Light Blue, Orange, Red, and a special American Flag Design featured by Pro Circuit factory riders at Red Bud MX. It's time to take your exhaust to the next level. Replacement Sticker Kits are available for the Ti-6 Pro/Ti-6 exhaust models, as well as then the T-6/T-6 Slip-On models and Mini.
Pro Circuit. We Race.
June 7, 2021
CRF110 Shift Shaft Brace
Additional Support for the Shift Shaft to Prevent Bending
Accidents on the track can happen like casing a jump or bumping into another rider. When mishaps like this arise, it could result in a part on your bike either bending or breaking. Luckily for 2013-2021 CRF110F riders, we here at Pro Circuit have just stocked a part that can offer additional support. Our Shift Shaft Brace is a CNC-machined part that sits just behind the shift lever and offers added protection for the shift shaft to prevent it from bending. Since the shift shaft sticks out on the 110, it's always best to have more support and to protect the transmission from serious damage. Don't be left with a bent shift shaft and have to replace it, so pick up a Pro Circuit Shift Shaft Brace for increased protection and a factory look.
Please note that the plastic countershaft sprocket cover will need some custom cutting for the shift shaft brace to fit properly.
Pro Circuit. We Race.
May 28, 2021
Honda High-Performance Parts
2021 CRF450R Clutch Springs and 2018-2021 CRF250R Radiator Hose and Water Pump Cover Kit
It's important to make sure your engine is running its best so you can continue to be competitive in the world of supercross and motocross racing. That is why Pro Circuit works so hard to deliver quality high-performance engine parts to help our customer's bikes run the best they possibly can. Our newest parts to help get the job done are clutch springs for the 2021 CRF450R and a kit for the 2018-2021 CRF250R that includes our Y-Radiator Hoses and Water Pump Cover with Impeller.
Our clutch springs for new CRF450R riders offer an increase in clutch life, decrease clutch slipping and improves engagement over a stock setup. The radiator hose and water pump cover kit for new CRF250R riders also increases performance. The Y-Radiator Hoses feature premium-grade silicone material that makes the hose kit able to withstand higher temperatures and pressures that the OEM hose cannot, while the water pump cover with impeller increases the pumping capacity and pressure head to reduce cavitation and increase cooling system performance. Our performance parts are essential upgrades every Honda racer should be lining up to the gate with to help separate themselves from the rest of the pack.
Pro Circuit. We Race.
April 28, 2021
2021 Honda CRF450R Race Piston
Give Your Brand new Honda Ride a Boost with the Pro Circuit Piston Kit
Here at Pro Circuit, our goal is to offer our customers the best performance products on the market. Our newest product is a High-Compression Piston Kit and it's now available for the 2021 CRF450R model. Our piston kits are manufactured by JE Pistons to our exact specifications and are forged from high-quality aerospace aluminum alloy using advanced CNC-machined equipment. The result is a significant gain in low-end torque and high-RPM performance. The High-Compression Piston Kit is designed for superior performance in either stock or modified engines and is an essential race item that every 2021 CRF450R rider should line up to the gate with.
Pro Circuit. We Race.
April 22, 2021
Pro Circuit Pit Rugs
Give Your Pit Setup the Factory Look with Counter, Mini and Standard Pit Rugs
Some new accessories have arrived at our shop that will be great additions to any home garage or pit area at the race track. The new Pro Circuit pit rugs are now available in four different colorways for big bikes and mini bikes (yellow/red, red/blue, green and orange). Also available is a cool red/blue counter mat that will help protect the top of your bench from your heavy toolbox or fluids.
Our new pit rugs are constructed of six different layers that include absorbent materials to suck up oil, gasoline, coolant, water and dust. The polyester edging makes for a nice finish, the non-slip rubber bottom helps keep the mat in place, and finally the anti-UV layer protects the design. These rugs are also easy to clean and can be washed and reused.
Pick up a new Pro Circuit pit rug and achieve that factory setup while protecting your garage floor or the dirt from any chemicals spilling onto them.
Pro Circuit. We Race.
April 6, 2021
2021 Race Team Graphic Kits
The Monster Energy/Pro Circuit/Kawasaki Look is now Available for new KX250/KX450 Models
Interested in making your 2021 KX250 or 2019-2021 KX450 look like one of our race team bikes? You're in luck, because the new 2021 Monster Energy/Pro Circuit/Kawasaki graphic kits have recently been stocked in our warehouse and are ready to ship out. Each kit includes high-quality printed decal pieces for front and rear fenders, front fender curved decals, shroud decals, fork guard decals, swingarm decals and extra sponsor decals for fenders and tank. Number plate backgrounds and seat cover are not included in the kit.
Pro Circuit. We Race.
April 5, 2021
Pro Circuit KX250 Airboot
Boost Performance for the new 2021 Kawasaki KX250 Model
Pro Circuit's commitment to offer KX250 customers the very best accessories for their bike continues with the release of the new airboot for the 2021 model. Designed to optimize the intake track, the Pro Circuit airboot seeks to enhance the "intake wave" so as to increase the airflow into the motor and consequently increasing horsepower.
Here's your opportunity to add a product to your 2021 KX250 that will increase performance and give off a works look that the OEM airboot never could.
Pro Circuit. We Race.
March 10, 2021
New Pro Circuit Hats are in
Three Flashy Headwear Styles to Choose From
Three brand new snapback hats were recently added to our line of headwear that will be sure to hook up one's image with a little bit of flashiness and style. The Diamond, Java and Treadmark are hand assembled by New Era and feature some different fabrics this time around like corduroy and herringbone to add a little variety to our caps. Top it off with custom Pro Circuit logos, superior stitching quality and rear snap closures for a perfect fit and you have hats that are ready to turn some heads the next time you hit up the local track, supercross race or out to dinner.
Pro Circuit. We Race.
March 5, 2021
Pro Circuit Factory Team Thermal
Keeping You Comfy No Matter What Time of Year
A new apparel item has been bagged and stocked in our warehouse, ready to ship out to customers. The new item is our Factory Team Thermal that is the ultimate in style, has an incredibly soft feel and is lightweight. With our factory flag graphic printed on the wearer's left chest, logo print on the sleeve and contrasting stitch throughout, the Factory Team Thermal is a great way to help stay warm through the colder months of the year and is a great addition to any motocrosser's wardrobe.
Pro Circuit. We Race.
February 25, 2021
2021 KX250 and KX450 Clutch Covers
Solid Upgrades for the new KX250 and KX450 Models
Pro Circuit is excited to launch two brand new clutch covers for customers who ride 2021 Kawasaki KX250 and KX450 models. Pro Circuit covers are CNC-machined from T-6 billet aircraft-grade aluminum to improve durability and heat dissipation. Cooler operating temperatures means improved performance, so here's your chance to add a product to your KX machine that is stronger, lighter and will also add a works look that the OEM cover never could.
Pro Circuit. We Race.
February 11, 2021
2021 Honda CRF450R Exhaust
A Boost in Performance for the new Honda Machine
Pro Circuit is excited to announce the T-6 and Ti-6 line of exhaust systems are available for the brand new 2021 CRF450R model. Proudly designed and manufactured in the USA, the new line of exhaust systems for the CRF450R continues with improved performance Honda riders have come to know. Whether you plan to ride off-road or race on a motocross track, Pro Circuit has the performance exhaust you're looking for to tackle the trails or power through some deep ruts towards the checkers.
The 2021 CRF450R Ti-6 Pro Titanium Exhaust System is designed for the AMA Pro racer competing in AMA/Monster Energy Supercross or the Lucas Oil Pro Motocross Championship series. Engineered to meet strict AMA/FIM sound regulations, the Ti-6 Pro system provides superior performance while complying with the series' sound regulations. The Ti-6 Pro exhaust system is constructed from high-grade titanium throughout with a carbon fiber end-cap for a factory look. Top Pro level teams look to Pro Circuit for products that win.
The 2021 CRF450R Ti-6 Titanium Exhaust System is designed for both closed-course and off-road racers. It's the ideal system for AMA Amateur events or any rider or racer looking for winning performance, legendary durability and a professional look. The Pro Circuit Ti-6 System is equipped with a removable USFS approved spark arrestor, making it easy to alternate between off-road and closed-course racing.
The 2021 CRF450R T-6 Stainless Steel Exhaust System is designed for both closed-course and off-road competition. Constructed from high strength stainless steel and aluminum, the T-6 offers the same improved performance as our Ti-6 System. The T-6 System is a great way for riders or racers looking for winning performance, legendary durability and a professional look but at a lower price. In addition, the T-6 System is equipped with a removable USFS approved spark arrestor making it easy to alternate between off-road and closed-course racing.
The 2021 CRF450R T-6 Stainless Steel Slip-On Silencer is for riders looking for an inexpensive, easy-to-install, durable performance silencer that can bolt right onto their stock head pipe. The T-6 Slip-On is constructed of stainless steel and high quality aluminum for increased durability. The T-6 Slip-On is a great option for any rider looking for an increase in performance on a small budget. A removable USFS approved spark arrestor is included to make it easier to alternate between off-road and closed-course racing.
Pro Circuit. We Race.
February 11, 2021
2021 Race Team Tee and Zip-Up Hoody
Head to the Track Looking Like Part of the Race Team Crew
It's that time of the year again for new race team apparel to roll out, and our 2021 line continues with a clean design and the display of our amazing sponsors. Both items are made with quality garments and superior screen printing that not only looks great, but holds up after years of washing. The 2021 Monster Energy/Pro Circuit/Kawasaki team apparel will have you looking like one of the crew members on race day, so pick up a tee or zip-up hoody and head to your local track, supercross or outdoor national event in support for the most successful privately-owned motocross and supercross team ever. Sizes range from small to 3XL.
Pro Circuit. We Race.
February 9, 2021
Suzuki Ti-2 Carbon Fiber Silencer
Factory Performance for the 2004-2008 RM250 is now Available
The talented crew over at our pipe shop have whipped up a product we're sure RM250 riders will appreciate. The 2004-2008 RM250 is our newest model that we now make a Ti-2 Carbon Kevlar/Titanium Silencer for. We're excited to add this to our lineup to help Suzuki riders hook up their bike with a little style and better performance. The Ti-2 is similar to our popular R-304 Silencer except it is constructed with a carbon Kevlar shell, titanium tubing and titanium end-cap. The titanium and carbon Kevlar construction offer the "factory" look and appearance while reducing weight. For closed-course use only, the Ti-2 for the 2004-2008 RM250 will be perfect for riders looking to restore their older RM250 two-stroke model.
Please note this Ti-2 silencer will also fit the 2004-2005 European RM250 version as well.
Pro Circuit. We Race.
January 20, 2021
KX250 Billet Ignition Cover
A Pro Circuit Part to Improve Your 2021 Kawasaki KX250 Four-Stroke Machine
The new Pro Circuit Billet Ignition Cover for the 2021 KX250 is a direct replacement for the OEM cover and is much stronger than the stock part. This cover is CNC-machined from aircraft quality aluminum for strength and durability then anodized for surface hardness and reduced normal wear. A must-have for the serious rider, the Pro Circuit Billet Ignition Cover for the new KX250 will definitely offer that factory look.
Pro Circuit. We Race.
December 11, 2020
New Headwear Items In Stock
Introducing the Retro Snapback, Stinger Beanie and Charcoal Beanie
Three new headwear pieces have arrived at the Pro Circuit headquarters and are bagged up ready to ship out to fans. A good accessory is always in need and our Charcoal beanie, Stinger beanie and Retro snapback offer the perfect style solution to revamp anyone's wardrobe. The Charcoal and Stinger beanies include classic stripe looks with a two-tone pom on the top of the Charcoal beanie. These beanies arrive in time for the colder months ahead to help keep the chill at bay while out at the races. Lastly, our Retro snapback is a green corduroy cap inspired by our '80s headwear fashion and features an iconic Pro Circuit racing logo embroidered on the front. All three items are the ultimate in style and will tie in seamlessly with any motocross fans wardrobe.
Pro Circuit. We Race.
December 2, 2020
2021 Kawasaki KX250 Race Piston
Greatly Increase Performance for Your new Kawasaki Four-Stroke Machine
Our goal here at Pro Circuit is to offer our customers the highest quality performance parts available and the 2021 KX250 High-Compression Piston meets the requirements. Manufactured by JE Pistons to our exact specifications, our pistons are forged from high-quality aerospace aluminum alloy using advanced CNC-machined technologies. The result is a significant gain in low-end torque and high-RPM performance. Pro Circuit High-Compression Piston Kits are designed for superior performance in either stock or modified engines and is a must-have engine component for the serious 2021 KX250 racer.
Pro Circuit. We Race.
November 6, 2020
Pro Circuit Polo Shirt
Another Option has Been Added to the Arsenal of Casual Wear
A newly released apparel item from Pro Circuit, the popular polo shirt has recently undergone a change in its color and a new graphic has been embroidered onto the front left chest and right sleeve. Simple and stylish, our comfortable polyester polo is just right for breathing new life into your office look or your race track attire. Grab a polo shirt and show your support for one of the legendary brands in the motocross world.
Pro Circuit. We Race.
November 5, 2020
2021 KX250/450 Linkage System
Better Handling and Performance for the Newer KX Four-Stroke Models
Pro Circuit is excited to release a new linkage system for the 2021 KX250 and 2019-2021 KX450 that brings the bike's handling performance to an entirely new level. The stock OEM linkage system for these newer models tends to be harsh and stiff at the beginning of the stroke and gets softer as the rear wheel goes deeper into the stroke. With our new linkage system, it's the complete opposite. The Pro Circuit KX250/KX450 linkage system is plusher at the beginning and stiffens up as the rear wheel goes deeper into the stroke. This adjustment lessens the need for stiffer high-speed valving, which can cause the rear to feel harsh and deflective. A considerable amount of research and testing for this new linkage system has resulted in a more true-to-weight spring rate to reach the ultimate sweet spot in handling for your new KX250/KX450. Ultimately, the new linkage creates a plush feel while increasing traction.
Note: An increase in spring rate is required. Usually a 0.2 kg/mm rate increase is recommended (Rate example: 5.4 goes to 5.6).
Pro Circuit. We Race.
November 2, 2020
Ryan Villopoto Spec YZ125 Exhaust
2002-2021 YZ125 Riders can now Have RV's Setup as Their own
Pro Circuit is excited to release a pipe and silencer package that Yamaha YZ125 riders will appreciate. Introducing the Ryan Villopoto spec Works Pipe and Ti-2 Carbon Kevlar Titanium Silencer, a setup fitted for a multi-time champion that can now be bolted onto your YZ125. The RV Works Pipe is available for 2005-2021 YZ125 models and is designed to be stronger on the bottom to the middle part of the power band. This is exremely beneficial off the start or on tighter, softer tracks where acceleration out of corners is key. The RV Ti-2 silencer is available for 2002-2021 YZ125 models and offers a professional look and a factory sound. When compared to a stock silencer, the RV Ti-2 version increases power on the bottom-end.
It's not every day riders get to bolt on a professional setup like this, so if you're in the market for an exhaust that will help pull you out of corners a little quicker or if you're a professional looking for a better jump out of the gate, then look no further. The RV Works Pipe and Ti-2 silencer is the perfect option for YZ125 riders looking to increase performance.
Pro Circuit. We Race.
October 21, 2020
Pro Circuit KLX110/L Shift Lever
The Perfect Boost for Riders of the 2012-2021 KLX110/L Machines
Newly released from Pro Circuit, the 2012-2021 KLX110/L shift lever is CNC-machined from aircraft quality billet aluminum for strength and anodized for durability. This shift lever comes with stainless steel spring hardware that resists corrosion and the free-folding, knurled tip design helps prevent dirt from clogging. Much like our standard sized bike shift levers, it is a perfect upgrade for someone looking to replace an older shift lever or to add a factory look to their ride.
Pro Circuit. We Race.
October 13, 2020
TT-R110 Cam Cover and Tappet Covers
Mini Moto Engine Accessories for the 2008-2021 Yamaha TT-R110 Models
Riders of TT-R110 2008-2021 models will be excited for the release of the cam cover and tappet covers to help add that factory look. These mini moto accessories are machined from aircraft-grade aluminum, anodized blue and polished for a great appearance that riders will appreciate. Make sure you don't pass up the opportunity to trick out your mini moto ride, so grab some accessories and show your support for one of the best brands in the business.
Pro Circuit. We Race.
September 18, 2020
Pro Circuit CRF110F Shift Lever
A Great Upgrade for 2013-2020 CRF110F Models
A new mini moto accessory for the 2013-2020 Honda CRF110F has just rolled into our warehouse and is ready to ship out. Much like our standard sized bike shift levers, this lever is also CNC-machined from aircraft quality billet aluminum for strength and anodized for durability. It comes with stainless steel spring hardware that resists corrosion and the free-folding, knurled tip design helps prevent dirt from clogging. It's also slightly longer than the OEM shifter to benefit adults, and is a perfect upgrade for someone looking to replace an older shift lever or to add a factory look to their mini moto machine.
Note: The shift lever works best while in the stock position on the gearbox shaft, otherwise the lever may hit the engine case.
Pro Circuit. We Race.
September 16, 2020
KTM 85 SX Bike Accessories
New Triple Clamps and Throttle Tube for the 2019-2020 KTM 85 SX Model
New Pro Circuit parts for the 2019-2020 KTM 85 SX are now in stock and ready for moto. A triple clamp kit is one of the new items for the 2019-2020 KTM 85 SX and is made in the USA from 6061 aircraft-quality billet aluminum for optimum strength. Its clear anodizing offers a durable protective finish to complete the works look, and the reversible bar mount allows you to choose from four different handlebar positions. These different positions will help to customize the ergonomics to better fit your riding style.
Another item for the KTM 85 SX is a throttle tube that is also CNC-machined from aircraft-quality aluminum, is much stronger than the OEM plastic material, and includes a Teflon coating on the inside to help ensure a smoother twist of the throttle. This throttle tube will also fit other recent KTM two-stroke models, like the 2017-2020 KTM 125/150/250 SX, and newer 250 and 300 enduro models. Slide a Pro Circuit throttle tube on your new KTM two-stroke model and twist the throttle with ease during your next ride at the track or off-road trail.
Pro Circuit. We Race.
September 14, 2020
Pro Circuit Engine Plug Kits
Add a Factory Look to Your 2014-2020 YZ250F and 2010-2020 YZ450F Machines
At Pro Circuit, we are committed to providing our customers with high-quality accessories that are more durable than OEM and give your bike a factory look as well. This is why we're excited to release our new Engine Plug Kit for the 2014-2020 YZ250F and 2010-2020 YZ450F models. Machined from aircraft-grade aluminum, hand polished and anodized blue, these new plugs are a must-have for any rider looking to add a little flash to their YZF. Give your bike an upgrade with Pro Circuit accessories.
Pro Circuit. We Race.
September 4, 2020
2021 KX250 Pro Circuit Exhaust
Unrivaled Performance Exhaust for the new KX250 Model
The release of Kawasaki's 2021 KX250 model has riders ready to take it for a ride around the nearest track or off-road trail, luckily for them, Pro Circuit has the performance exhaust they need to up the fun of riding the new bike. Every Pro Circuit exhaust system is proudly designed and manufactured in the USA and offers championship winning performance products and 2021 will be no different. Set up your new 2021 KX250 with the latest Ti-6 or T-6 exhaust system and leave your competition in the dust.
The 2021 KX250 Ti-6 Pro Titanium Exhaust System is designed for the AMA Pro racer competing in AMA/Monster Energy Supercross or the Lucas Oil Pro Motocross Championship series. Engineered to meet strict AMA/FIM sound regulations, the Ti-6 Pro system provides superior performance while complying with the series' sound regulations. The Ti-6 Pro exhaust system is constructed from high-grade titanium throughout with a carbon fiber end-cap for a factory look. Top Pro level teams look to Pro Circuit for products that win.
The 2021 KX250 Ti-6 Titanium Exhaust System is designed for both closed-course and off-road racers. It's the ideal system for AMA Amateur events or any rider or racer looking for winning performance, legendary durability and a professional look. The Pro Circuit Ti-6 System is equipped with a removable USFS approved spark arrestor, making it easy to alternate between off-road and closed-course racing.
The 2021 KX250 T-6 Stainless Steel Exhaust System is designed for both closed-course and off-road competition. Constructed from high strength stainless steel and aluminum, the T-6 offers the same improved performance as our Ti-6 System. The T-6 System is a great way for riders or racers looking for winning performance, legendary durability and a professional look but at a lower price. In addition, the T-6 System is equipped with a removable USFS approved spark arrestor making it easy to alternate between off-road and closed-course racing.
The 2021 KX250 T-6 Stainless Steel Slip-On Silencer is for riders looking for an inexpensive, easy-to-install, durable performance silencer that can bolt right onto their stock head pipe. The T-6 Slip-On is constructed of stainless steel and high quality aluminum for increased durability. The T-6 Slip-On is a great option for any rider looking for an increase in performance on a small budget. A removable USFS approved spark arrestor is included to make it easier to alternate between off-road and closed-course racing.
Pro Circuit. We Race.
September 1, 2020
Pro Circuit TT-R110 Accessories
A Perfect way to Upgrade Your 2008-2020 Yamaha TT-R110
New accessories for the 2008-2020 Yamaha TT-R110 are now in stock and ready for some mini moto riding. A new top clamp and bar mount, engine plug kit and a throttle tube are available and all are machined from aircraft-grade aluminum then anodized and polished for a true works look mini bike riders will appreciate. TT-R110 riders shouldn't pass up the opportunity to continue tricking out their mini moto ride, so grab some new accessories and show your support for one of the best brands in the business!
Pro Circuit. We Race.
August 28, 2020
Pro Circuit Radiator Hose Kit
High-Performance Radiator Hose Kit for the 2020 CRF250R
Pro Circuit has recently released a new radiator hose kit for the 2020 CRF250R that is a must-have item to keep your bike running cool and performance at its very best. Our Standard Radiator Hose Kit features a premium-grade silicone material that makes the hose kit able to withstand higher temperatures and pressures that the OEM hose cannot. The kit comes in a non-fading bright blue color that adds a trick factory look to your race machine while still increasing performance and functionality.
Pro Circuit. We Race.
August 26, 2020
2020-2021 Husqvarna Slip-On
T-6 Slip-On Silencer for Husqvarna FE 350/S and FE 501/S Riders
Pro Circuit is excited to release a T-6 Stainless Steel Slip-On Silencer for enduro riders of the 2020-2021 Husqvarna FE 350/S and FE 501/S models. Our slip-on is for riders looking for an inexpensive, easy-to-install, durable performance silencer that can bolt right onto their stock head pipe. The T-6 slip-on is constructed of stainless steel, high-quality aluminum for increased durability and is a great option for any rider looking for an increase in performance on a small budget. A removable USFS approved spark arrestor is included to make it easier to alternate between off-road and closed-course racing. Whether an enduro rider wants to shred up an off-road course or motocross track, Pro Circuit has the performance slip-on they're looking for.
Pro Circuit. We Race.
August 12, 2020
CRF110F Top Clamp and Bar Mount
Works-Style Clamps for the 2013-2018 CRF110F Model
Just like our previously released top clamp and bar mount for the CRF110F 2019-2020, we now have sets fitted for the older 2013-2018 CRF110F models. The clamp is CNC-machined out of aluminum and then anodized red and blue for a factory look. The clamp also has full adjustability with different bar mount configurations, so you are able to personalize fitment as well. This clamp is the perfect solution to prevent knees from smacking the bars, and it will also make your CRF110F's front end longer. These clamps are great for any mini moto rider looking to trick out their Honda CRF110F.
Pro Circuit. We Race.
July 31, 2020
Pro Circuit KLX110 Ignition Cover
Another Mini Bike Accessory to Trick out Your 2010-2020 KLX110/L
Pro Circuit's newest mini bike accessory is a Billet Ignition Cover for a 2010-2020 KLX110/L. It's a direct replacement for the OEM cover and will definitely offer a factory look. The new cover is CNC-machined from aircraft quality aluminum for strength and durability then anodized for surface hardness and reduced normal wear. This part is a must-have for any KLX110/L rider looking to trick out their mini moto machine.
Pro Circuit. We Race.
July 24, 2020
2020 TT-R Exhaust Systems
Pro Circuit T-6 Exhaust Systems for the 2000-2020 TT-R125 and 2020 TT-R230 Models
Yamaha TT-R trail riders who are looking for an increase in performance while out doing wheelies through sand whoops should look no further. Pro Circuit has recently released brand new T-6 Stainless Steel Exhaust Systems for the 2000-2020 TT-R125 and 2020 TT-R230 models that deliver the performance needed. The new exhaust systems offer improved performance and durability off-road riders will appreciate. Each exhaust is constructed of a stainless steel head pipe, aluminum canister and carbon fiber end-cap. A United States Forest Service approved spark arrestor also comes equipped making them easy to alternate between off-road and closed-course racing.
Pro Circuit. We Race.
July 17, 2020
New Pro Circuit Tees Now Available
The Pro Circuit Piston Tee and Spark Plug Tee are now up for Grabs
Two new Pro Circuit tees are now available in the shop, bagged up and ready to head out to customers. The batch includes our Piston Tee with a custom racing graphic on the back as well as a small piston print on the wearer's left chest and our Spark Plug Tee pays tribute to the '99 race team graphic kit with its swirling reds and blues, plus the iconic spark plug artwork. Both tees are the ultimate in style and are the perfect items to complete any motocross fan's wardrobe.
Pro Circuit. We Race.
July 13, 2020
Honda CRF230F Exhaust System
A Pro Circuit T-6 Exhaust System for the 2003-2019 CRF230F Model
Pro Circuit is thrilled to roll out a new T-6 exhaust system for the 2003-2019 Honda CRF230F model. The new T-6 Stainless Steel Exhaust System offers improved performance, durability and a professional look. A stainless steel head pipe, brushed aluminum canister, carbon fiber end-cap as well as a United States Forest Service approved spark arrestor also come equipped making it easy to alternate between off-road and closed-course racing. Upgrade your older model Pro Circuit exhaust and head to the open trails for a great ride with friends.
Pro Circuit. We Race.
July 9, 2020
KLX140 T-6 Exhaust System
Pro Circuit System for the 2008-2020 Kawasaki KLX140 Model
Recently released from Pro Circuit, the 2008-2020 KLX140 T-6 Exhaust System will be sure to increase performance for entry level riders as they tear up the off-road trails. The exhaust system offers improved performance, durability and a professional look. The T-6 is constructed of a stainless steel head pipe, brushed aluminum canister and a carbon fiber end-cap. A United States Forest Service approved spark arrestor also comes equipped making it easy to alternate between off-road and closed-course racing. The T-6 exhaust system for the KLX140 is a great performance exhaust for both young and old riders who want to have a little off-road fun.
Pro Circuit. We Race.
June 18, 2020
Pro Circuit Mini Bike Accessories
Assorted Engine Accessories for CRF110F, KLX110 and KLX230 Models
Pro Circuit is excited to release an assortment of engine accessories like Billet cam covers, tappet covers and engine plug kits for select mini bike models. New tappet covers for the '15-20 KLX110 and 2020 KLX230, a Billet cam cover for the '02-20 KLX110 and '10-20 KLX110L, as well as engine plug kits for the '18-20 CRF110F and '10-20 KLX110 are now available at the shop and are all machined from aircraft-grade aluminum, anodized red and hand polished for a true works look any mini bike rider will be sure to appreciate. Don't pass up the opportunity to continue tricking out your mini moto ride. Grab some new accessories and show your support for one of the best brands in the business!
Pro Circuit. We Race.
June 4, 2020
Pro Circuit Mini Bike Throttle Tubes
New Accessories for the '19-20 CRF110F, '10-20 KLX110 and '08-20 KLX140
New mini bike parts for the Honda CRF110F and KLX110/140 are now in stock and ready for moto. The Pro Circuit throttle tubes for the 2019-2020 CRF110F, 2010-2020 KLX110 and 2008-2020 KLX140 are CNC-machined from aircraft quality aluminum and are much stronger than the OEM plastic material. Pro Circuit also added a Teflon coating which will help to ensure a smoother twist of the throttle. Slide a Pro Circuit throttle tube on your new CRF/KLX model and twist the throttle with ease during your next pit bike ride.
Pro Circuit. We Race.
May 27, 2020
New Pro Circuit/Fox Snapback Hat
A Collaboration of Speed From Two Legendary Brands
A new Pro Circuit/Fox collaboration hat has found its way to our doorstep and is ready to ship out to fans. What started as a small run of hats for the race team crew has now turned into a run of hats for our customers. Our new snapback includes a woven patch graphic centered on the front with a Fox logo tag sewn into the back plastic snap closure. Designed to meet all of your style needs, the Pro Circuit/Fox collaboration snapback is perfect to throw on before you head out to dinner with friends or if you're cruising to your local track.
Pro Circuit. We Race.
May 22, 2020
CRF110F Top Clamp and Bar Mount
Works-Style Clamps for the 2019-2020 CRF110F Model
Pro Circuit is excited to release a new mini moto part for 2019-2020 CRF110F models. Designed to suit the taller rider, the Pro Circuit top clamp and bar mount helps create more legroom by raising the handlebars. It's the perfect solution to prevent knees from smacking the bars, and it will also make your CRF110F's front end longer. The clamp has full adjustability with different bar mount configurations, so you are able to personalize fitment as well. The clamp and bar mount are CNC-machined out of aluminum and then anodized red and blue for a factory look. These clamps are perfect for any mini moto rider looking to trick out their CRF110F.
Pro Circuit. We Race.
May 20, 2020
New Pro Circuit Apparel Now In Stock
A Fresh new Tee, Crew Neck and Zip-Up for Your Wardrobe
New Pro Circuit apparel items have landed in our shop and are now in stock. Now you can complete your look with either our Pit Bike Tee that has a classic retro look or the Service Crew Neck that includes an old favorite service technician. You should also make room in your closet for our cozy Racer Zip-Up Hoody that takes on a new race-inspired design that will be a favorite at the track for many. We use only premier quality inks and state of the art screen printing processes on good material from the best apparel makers in the business. Grab one or all three and show the world your support for the Pro Circuit squad.
Pro Circuit. We Race.
May 18, 2020
Pro Circuit Titanium Catch Cans
Grab a Works Part for Your Own Four-Stroke Dirt Bike
The popular catch cans that are secured on frames of factory bikes and our own Monster Energy/Pro Circuit/Kawasaki race bikes can now be a works part of your own. Handmade from titanium, the catch can connects to the over flow on the radiator and is designed to capture coolant when the bike gets hot. The coolant will flow back into the radiator once your bike has cooled down. Its purpose is to maintain optimal coolant levels during a race.
Pro Circuit. We Race.
May 8, 2020
KLX/DR-Z110 Top Clamp and Bar Mount
Works-Style Clamps for the 2002-2020 KLX110/L and 2003-2005 DR-Z110 Models
Tired of hitting your knees against the bars of your KLX/DR-Z110 while riding? No need to worry, because we are reintroducing our custom designed top clamp and bar mount once again for the mini fanatics. The Pro Circuit top clamp and bar mount for 2002-2020 KLX110/L and 2003-2005 DR-Z110 models offer the perfect solution by providing substantial rise over the stock triple clamps. This will also make the front end longer. The clamp has full adjustability with different bar mount configurations, so you are able to personalize fitment as well. The clamp and bar mount are CNC-machined from aluminum and then anodized for the "works" look, perfect for anyone looking to trick out their mini moto ride.
Pro Circuit. We Race.
May 6, 2020
2020 KLX230R and KLX300R Exhaust
Superior Performance for the new Kawasaki Trail Motorcycles
Pro Circuit is excited to announce the release of a T-6 Stainless Steel Slip-On and T-6 Stainless Steel Exhaust System for each of the 2020 KLX230R and KLX300R Kawasaki trail bike models. The new exhaust offers improved performance and durability off-road riders will appreciate. Each exhaust is constructed of a stainless steel mid pipe, end-cap and aluminum canister (The systems include a stainless steel head pipe). A United States Forest Service approved spark arrestor also comes equipped making them easy to alternate between off-road and closed-course racing. Bolt on a Pro Circuit exhaust and enjoy exceptional performance the next time you decide to have some fun on a trail with your new KLX machine.
Pro Circuit. We Race.
April 29, 2020
2020 Yamaha YZ450F Camshafts
Greatly Increase Performance for your new Yamaha Machine
2020 YZ450F riders can always expect the best performance parts from Pro Circuit and the new camshafts for your Yamaha will not disappoint. The new camshafts provide superior performance upgrades over stock (HP/torque) by optimizing the lobe profile for increased lift and duration. The new YZ450F camshafts are a must-have upgrade for any serious racer wanting to separate themselves from the rest of the pack.
Pro Circuit. We Race.
April 10, 2020
2020 Honda CRF250R Race Piston
Give a Boost in Performance for the new Honda Machine
Pro Circuit's goal is to offer customers the highest quality performance parts available and the 2020 CRF250R High-Compression Piston meets the requirements. Manufactured by JE Pistons to our exact specifications, Pro Circuit pistons are forged from high-quality aerospace aluminum alloy using advanced CNC-machined technologies. The result is a significant gain in low-end torque and high-RPM performance. Pro Circuit High-Compression Piston Kits are designed for superior performance in either stock or modified engines and is a must-have engine component for the serious 2020 CRF250R racer.
Pro Circuit. We Race.
April 3, 2020
The Great Race Tee is in Stock
Grab a Shirt of Mitch Burning Rubber in his Anaheim Husqvarna Van
A new shirt has landed in the Pro Circuit warehouse and the boss himself, Mitch Payton, is displayed on the back design. Printed on a comfortable blank with quality inks, The Great Race Tee will definitely have hearts racing for the ones who enjoy an occasional car burnout as Mitch lays down the power in his old Anaheim Husqvarna van. This tee was originally handed out in limited quantities on the day Mitch received the Edison Dye Lifetime Achievement Award, but now customers have the chance to score one as well.
Pro Circuit. We Race.
March 17, 2020
Twist the Throttle With Ease
Throttle Tube for the 2018-2020 CRF250R/X and 2019-2020 CRF450R Models
Recently released for new CRF models, the Pro Circuit Throttle Tube for 2018-2020 CRF250R/X and 2019-2020 CRF450R models is CNC-machined from aircraft quality aluminum and is much stronger than the OEM plastic material. Pro Circuit also added a Teflon coating which will help to ensure a smoother twist of the throttle. Slide a Pro Circuit throttle tube on your new CRF model and twist the throttle with ease during your next ride at the track.
Pro Circuit. We Race.
March 13, 2020
2020 KX250 Titanium Valves
These Pro Circuit Performance Parts Will Help Extend the Lifespan of Your Engine
Pro Circuit's commitment to offer customers the very best engine performance parts continues with the release of the titanium exhaust and intake valves for the 2020 KX250 model. Pro Circuit's titanium valves incorporate a flat faced design for increased compression, are tested using an in-house dyno machine and manufactured to Pro Circuit's exact specifications by Del West, the industry leader in F-1 valve technology. Each exhaust and intake valve is CNC-machined and precision ground. A thermal-nitride coating is then applied to increase performance, durability and help reduce normal wear. The titanium exhaust and intake valves will help extend the life of a 2020 KX250 engine while providing a gain in performance.
Pro Circuit. We Race.
March 10, 2020
KX450 Billet Ignition Cover
Improve Any 2019-2020 KX450 With This Pro Circuit CNC-Machined Part
Pro Circuit's new Billet Ignition Cover for the 2019-2020 KX450 is a direct replacement for the OEM cover and is much stronger than the stock part. The new cover is CNC-machined from aircraft quality aluminum for strength and durability then anodized for surface hardness and reduced normal wear. A must-have for the serious rider, the Pro Circuit Billet Ignition Cover for the new KX450 will definitely offer that factory look.
Pro Circuit. We Race.
March 6, 2020
2020 Race Team Graphic Kits
KX85/250/450 Riders Can Now Achieve The Monster Energy/Pro Circuit/Kawasaki Look
Recently stocked in the Pro Circuit warehouse, the 2020 Monster Energy/Pro Circuit/Kawasaki team graphic kit will make any 2014-2020 KX85, 2017-2020 KX250 and 2019-2020 KX450 model look like it belongs under the team tent! Each kit includes high-quality digitally printed graphic decals for front and rear fenders, front fender curved decals, shroud decals, fork guard decals, swingarm decals and extra sponsor decals for fenders and tank. Number plate backgrounds and seat cover are not included in the kit.
Please note: Gold hologram elements seen on team bikes are not featured in the sale kits.
Pro Circuit. We Race.
March 4, 2020
2020 CRF250R/RX Clutch Springs
Increased Clutch Life and Reduced Slipping for New CRF250R/RX Models
Pro Circuit is thrilled to release a set of clutch springs for the new 2020 CRF250R/RX Honda models. Pro Circuit clutch springs offer customers an increase in clutch life, decrease clutch slipping and improves engagement over a stock setup. These high-performance springs will have riders noticing consistent spring performance throughout time, which is crucial in controlling how efficiently the clutch turns power into acceleration. The Pro Circuit 2020 CRF250R/RX Clutch Springs will also work well in stock or modified engines and are a must-have for any serious racers.
Pro Circuit. We Race.
February 18, 2020
KLX110 and TT-R110E Exhaust Systems
Pro Circuit Exhaust Systems for the Older and Newer 110 Models
Pro Circuit is excited to announce the release of a new T-6 exhaust system for each of the 2010-2020 Kawasaki KLX110 and 2008-2020 Yamaha TT-R110E models. The exhaust systems offer improved performance, durability and a professional look KLX110 and TT-R110E riders will be stoked on. The T-6 is constructed of a stainless steel head pipe, brushed aluminum canister and a carbon fiber end-cap. A United States Forest Service approved spark arrestor also comes equipped making them easy to alternate between off-road and closed-course racing. These systems are the perfect performance exhaust for both young and old riders looking to have a little fun in the dirt.
Pro Circuit. We Race.
February 11, 2020
2020 Yamaha YZ450F Race Piston
Greatly Increase Performance for Your new Yamaha Ride
Offering our customers only the finest performance parts available is our goal here at Pro Circuit. Our newest product is a High-Compression Piston Kit for the 2020 YZ450F. Manufactured by JE Pistons to our exact specifications, Pro Circuit pistons are forged from high-quality aerospace aluminum alloy using advanced CNC-machined technologies. The result is a significant gain in low-end torque and high-RPM performance. Pro Circuit High-Compression Piston Kits are designed for superior performance in either stock or modified engines and is a must-have engine component for serious racers.
Pro Circuit. We Race.
Liability:
All products manufactured and/or distributed by Pro Circuit Products, Inc. are offered and designed for use with standard machines. Pro Circuit Products, Inc. makes no claims as to the products effectiveness on modified machines. Pro Circuit Products, Inc. is the sole determiner of abuse, misuse, installation errors and modifications. We assume no liability for any errors in listings, specifications, part numbers, prices or model applications. Pro Circuit Products, Inc. reserves the right to change specifications, product descriptions, product quality, pricing and model applications at any time without prior oral or written notice and without further obligation.
Adding new components to your motorcycle (especially to the engine, suspension or braking system) may radically alter the acceleration, deceleration, handling and braking characteristics of your motorcycle. Ensure that all parts are installed and properly torqued per the instructions supplied with the part or to the motorcycle manufacturer's original specifications. Test the motorcycle with the new part(s) on level ground, at low speed, without any other vehicles or obstacles nearby, to ensure that it is working properly. Periodically recheck, adjust or replace the parts as may be necessary depending upon the terrain, use, mileage and rider input. Consult the instructions supplied with the part, or the motorcycle manufacturer's original specifications for further details. The failure to properly install, maintain, or familiarize yourself with the new part's use, and proper operation, may result in damage to the motorcycle, and/or a loss of control, resulting in serious injury or death. Buyers assume all risk for any and all damage caused to themselves, a third party and/or property by virtue of failure of these products. By installing and/or using a Pro Circuit Products, Inc. product, you hereby accept and understand these stated terms and conditions.
