RK 520 EXW Super Strong X-Ring Motocross / Enduro Racing Drive Chain Gold 520EXWGB 118

520EXW is specifically designed for ATV/Quads and off-road vehicles and is the best high-speed, extreme heat, off-road performance chain available today.
EXW chains were developed to survive the abrasive conditions that exist in hostile off-road environments, with special heat treatment for thermal fatigue resistance.
EXW Series features XW-Ring which extremely improves the chain life and lower friction, providing high performance under extreme condition such as rally races.
Best performance for extreme rally races over 1000km.