





This part being universal, it may require adaptations
Brand: RK — Manufacturer's ref: 428HSB-134-CL
Reinforced 428H transmission chain, designed for enduro and motocross. This non-O chain (Heavy Duty Non-O) offers an effective compromise between strength and cost: ideal for intensive use on machines up to 200 cc. The construction from carbon alloy steel, with heat treatment and shot peening of all components, ensures mechanical resistance suitable for off-road conditions.
The chain is pre-tensioned and pre-stretched to limit initial elongation and facilitate the tuning of the transmission. Regular installation, tensioning, and lubrication remain essential to get the best performance from the links and the sprocket. Robust against shocks and repeated stresses, it is aimed at riders looking for a reliable and economical solution for their motocross outings or intensive enduro sessions.