PRODUCT INFORMATION

• Made for the serious motocross racer with all components heat-treated for high-performance durability
• Feature chromoly steel construction with seamless rollers and bushings, and oversized alloy pins for added strength
• 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 lb.
• GB 428 MXZ - For street bikes up to 250cc and dirt bikes up to 125cc
• Maximum tensile strength of 5,800 lb.
• GB 520 MXZ4 - Works MX race chain
• For 125cc to 500cc applications
• Maximum tensile strength of 9,000 lb.
• Wear life index of 300