The RK Excel GB520XRU-124 520 XRU Gold Drive Chain is a lightweight, professional-grade racing chain developed for high-performance motorcycles. Designed in collaboration with MotoGP and World Superbike teams, this chain uses advanced UW-Ring seals to help reduce friction while maintaining consistent horsepower delivery throughout a race. Its gold finish provides a distinctive appearance while supporting the professional racing design.
Built for racing applications up to 1,000cc and 265 horsepower, the RK Excel 520 XRU is engineered for demanding track use. The 124-link configuration is intended for compatible motorcycle drivetrains and should be verified against the original chain length, sprocket setup, and manufacturer fitment requirements before installation. This chain is designated for racing use only and is not intended as a general-purpose street replacement.
Feature: Professional MotoGP- and World Superbike-developed racing chain
Feature: UW-Ring seals designed to reduce friction and support efficient power delivery
Feature: 9,000-pound tensile strength
Feature: Rated for motorcycles up to 1,000cc and 265 horsepower
Feature: Gold finish with 124 links
Feature: Racing-only application
Feature: Manufacturer part number GB520XRU-124
Feature: Vendor part number 691-1704G
Features:
- Professional MotoGP- and World Superbike-developed racing chain
- UW-Ring seals designed to reduce friction and support efficient power delivery
- 9,000-pound tensile strength
- Rated for motorcycles up to 1,000cc and 265 horsepower
- Gold finish with 124 links
- Racing-only application
- Manufacturer part number GB520XRU-124
- Vendor part number 691-1704G