RK GOLD PRO RX-RNG GB520XSO-100 GB520XSO-100

Heavy duty Rated up to 500cc Applications 
Made for the serious Motocross racer, GB520MXZ4 is available in our distinctive gold or metal racing finish.
MXZ 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.
With a maximum tensile strength rated at 9000 foot-pounds and weighing in at only 2.89 lb, GB520MXZ4 is the lightest and strongest Motocross chain available today!
Ideal for professional level 125cc to 500cc Open Class racing.