FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. The flagship exhaust system in the range, the Evolution Line is used by race teams. Constructed from ultra-lightweight titanium to significantly reduce weight and assist with handling. This full system features titanium headers, which give a performance increase over the Slip-On Line and a racing sound. Simple to...

The inventor and worldwide patent holder of the first solid body plastic chain guide system. The Factory Edition #1 Rear Guide is a solid body design, with long lasting non replaceable wear pad. Called by Dirt Bike Magazine "The Superman of all chain guides" over the past 20 years. Exclusive Plastic formula “RMS” (Return Memory System) is so guide returns to center on impact.<br...

Noise reducer insert for CRF250/300/400/450 FROM MOTOCORSS TO ENDURO EXHAUST SYSTEM.

The only made in the USA factory tested chain slider used by top teams like Geico Honda MX. Improved slider shape to increase longevity in critical wear spots. TMD sliders include friction reducing additives to decrease chain drag. There is also UV protection additives to reduce color fade. Dampening pads are applied to reduce chain noise.

Rear chain guide standard - Suitable for 2002/2021 CRF250R / CRF250RX and 2002/2021 CRF450R / CRF450RX