RK HEAVY-DUTY CHAINS (MXZ/MXZ4) RK GB428MXZ X 120 LINKS

Made for the serious motocross racer with all components heat-treated for high performance and durability Features chromoly steel construction with seamless rollers and bushings, and oversized alloy pins for added strength MXZ4 is the lightest and strongest MX chain on the market with an impressive tensile strength and a weight of only 2.89 lb. Ideal for professional level from 80cc to 500cc open class racing Chains include clip connecting link GB 420 MXZ – Made for the serious motocross racer For street bikes up to 150cc and dirt bikes up to 125cc Maximum tensile strength of 5,000 lbs. GB 428 MXZ – For street bikes up to 250cc and dirt bikes up to 125cc Maximum tensile strength of 5,800 lbs. GB 520 MXZ4 – Works MX race chain For 125cc to 500cc applications Maximum tensile strength of 9,000 lbs. Wear life index of 300 HEAVY-DUTY CHAINS (MXZ/MXZ4) Gold 428 MXZ Heavy-Duty Chain RK GB428MXZ X 120 LINKS