-These super tough Gold chains are strong enough to take the punishment of any bike up to 500cc.

-Made for the serious Motocross racer, who values every ounce of performance over system life.

-GB520MXZ4 chains feature Chromoly steel construction with seamless rollers and bushings, and oversized special alloy pins for added strength. All components are heat-treated using RK's exclusive HIT (Heat Induction Transfer) process.

-8,000 pound tensile. Ideal for professional level 125cc to 500cc Open Class racing.