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March 17, 2020

Twist the Throttle With Ease

Throttle Tube for the 2018-2020 CRF250R/X and 2019-2020 CRF450R Models

CORONA, CA - March 17, 2020 - 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 Lifespance of Your Engine

CORONA, CA - March 13, 2020 - 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.



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.


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