New Products: Pro Circuit CRF250R and KX450 Engine Parts

190925 Pro Circuit CRF250R and KX450 Engine Parts [678]

CORONA, CA – September 25, 2019 – (Motor Sports NewsWire) – 2018-2019 CRF250R and 2020 KX450 riders across the globe can trust Pro Circuit to deliver the best engine performance parts on the market. The newly released engine parts that follow that standard are the camshafts and valve springs for the 2018-2019 CRF250R model. It is mandatory that a Pro Circuit 2018-2019 CRF250R piston be used with the camshaft and valve springs, otherwise there will be engine complications. Another item also offered are camshafts for the new 2020 KX450 that will be sure to provide exceptional performance over stock. These new items are must-haves for serious Honda and Kawasaki racers looking to put it to the rest of the pack.

2018-2019 CRF250R piston part number is listed below.

Used by many factory teams, Pro Circuit Camshafts are designed to provide superior performance over stock (HP/torque) by optimizing the valve lift profile. Used in conjunction with Pro Circuit Valve Springs should ensure a valve train free of dynamic bounce.

(2018-2019 CRF250R camshaft must be used with VSH19250 & RPH18250F)

Valve Springs
Pro Circuit Valve Springs allow your engine to run at a higher rpm without loss of valve control.

High-Compression Piston
Manufactured by JE Pistons to our exact specifications using the most advanced technologies available, our Pro Circuit High-Compression Piston Kit for the 2018-2019 CRF250R provides a significant boost in low-end torque and high RPM performance.

Pro Circuit. We Race.

2018-2019 CRF250R Camshafts Image
2018-2019 CRF250R Valve Springs Image
2018-2019 CRF250R Piston Image
2020 KX450 Camshafts Image

190925 Pro Circuit CRF250R and KX450 Engine Parts - Part-Number-Pricing-R-4-A

Please visit for information on Pro Circuit products.

Connect with Us:


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.

Source: Pro Circuit Products, Inc.

Pro Circuit banner