Item of The Week
New Apparel
Catch Can
For Sale Bikes
Team Graphic Kits
YZ450F Piston
2020 CRF250R Exhaust
Email Sign Up
Free Freight on Retail Orders over $250 in the USA (Excl. AK & HI). Online Orders Only.

April 29, 2020

2020 Yamaha YZ450F Camshafts

Greatly Increase Performance for your new Yamaha Machine


CORONA, CA - April 29, 2020 - 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


CORONA, CA - April 10, 2020 - 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.



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.


Click for Older Posts