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August 8, 2019

2019-2020 KX450 Water Pump Kit

Keep Your Bike Running Cool When the Going Gets Hot


CORONA, CA - August 8, 2019 - A crucial engine component necessary for superior engine performance, the 2019-2020 KX450 Water Pump Kit is designed to keep your engine running cool when the racing heats up. The Pro Circuit water pump provides increased pumping capacity and reduced cavitation for maximum cooling efficiency. The water pump kit for the new KX450 is an essential race item that has been rigorously tested for peak performance and is forged from CNC-machined aircraft quality aluminum and anodized for a factory look.


Pro Circuit. We Race.

August 6, 2019

Honda Performance Engine Package

Greatly Increase Performance for your 2017-2019 CRF450R/RX

CORONA, CA - August 6, 2019 - At Pro Circuit, we've earned our reputation as a premier engine builder through hard work and commitment to only offer our customers the finest performance parts available. We continue that tradition with our new Performance Engine Package for the 2017-2019 CRF450R/RX. This package consists of 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.


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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