RK Works Gold Series GB420MXZ motocross chain size 420 x 130 (links).
All feature heavier side plates for added strength and resistance to stretching
MXZ racing chains are made for serious motocross riders with all components heat treated for high performance durability; Chromoly steel construction with seamless rollers and bushings and oversized alloy axles for added strength
Max. Engine Size: 150cc
Tensile strength: 5000
Lifespan index: 300 (The lifespan index should be used as a comparison for the likely lifespan under identical circumstances. Consider it as a percentage, standard strings are 100)
La RK GB420MXZ-130 chain is suitable for a KX100 and a CRF150RB also because the chain is longer than standard.
RK GB420MXZ-130 chain is fSupplied with C-shaped clip link.