BOLD MAGENTA part numbers are new for 2025 CHAINS & DRIVE BELTS PARTSCANADA.COM STREET | 2025 759 XRE (XW-RING) LIGHTWEIGHT HIGH PERFORMANCE •Ideal for OE replacement of mid-size motorcycle •Lightweight and durable chain provides quick and smooth acceleration •Designed with cutting edge technology from various on-road and off-road racing • RK’s original double-X-shaped “XW-Ring” seal provides exceptionally long chain wear-life • 520XRE tensile strength of 8,200 lbs. and maximum of 800cc • 525XRE tensile strength of 9,400 lbs. and maximum of 1000cc • 530XRE tensile strength of 9,900 lbs. and maximum of 1400cc 420MXZ NO. OF LINKS 420MXZ NATURAL PART # 420MXZ GOLD PART # 110 503644 RK420MXZ110 120 503513 RK420MXZ120 134 503645 503647 428MXZ1 NO. OF LINKS 428MXZ1 NATURAL PART # 428MXZ1 GOLD PART # 120 1221-0368 1221-0375 136 1221-0372 1221-0383 520MXZ5 NO. OF LINKS 520MXZ5 NATURAL PART # 110 1221-0405 NO. OF LINKS 520MXZ5 NATURAL PART # 120 1221-0410 NO. OF LINKS 520MXZ5 NATURAL PART # 130 1221-0412 CONNECTING LINKS DESCRIPTION NATURAL PART # GOLD PART # 420MXZ Clip connecting link 503550 R18422MXZ 428MXZ1 Clip connecting link 1225-0740 1225-0741 DESCRIPTION NATURAL PART # GOLD PART # 520MXZ5 Clip connecting link - 1225-0744 Rivet connecting link 1225-0748 - MXZ HEAVY-DUTY CHAINS •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 520XRE (NATURAL) - CUT-TO-LENGTH DESCRIPTION 520XRE NATURAL PART # 110 links 1223-1857 114 links 1223-1859 120 links 1223-1862 130 links 1223-1863 Clip connecting link 1225-0813 Rivet connecting link 1225-0814 525XRE (NATURAL) – CUT-TO-LENGTH DESCRIPTION 525XRE NATURAL PART # 110 links 1223-1869 120 links 1223-1872 130 links 1223-1873 Rivet connecting link 1225-0818 530XRE (NATURAL) – CUT-TO-LENGTH DESCRIPTION 530XRE NATURAL PART # 110 links 1223-1884 120 links 1223-1889 130 links 1223-1891 Rivet connecting link 1225-0822 GB520XRE (GOLD COLOR) - CUT-TO-LENGTH DESCRIPTION GB520XRE GOLD PART # 110 links 1223-1864 120 links 1223-1867 130 links 1223-1868 Clip connecting link 1225-0815 Rivet connecting link 1225-0816 GB525XRE (GOLD COLOR) – CUT-TO-LENGTH DESCRIPTION GB525XRE GOLD PART # 110 links 1223-1875 120 links 1223-1878 130 links 1223-1880 Rivet connecting link 1225-0820 GB530XRE (GOLD COLOR) – CUT-TO-LENGTH DESCRIPTION GB530XRE GOLD PART # 110 links 1223-1894 120 links 1223-1897 130 links 1223-1898 Rivet connecting link 1225-0824 •For street bikes up to 150cc and dirt bikes up to 125cc •Maximum tensile strength of 5,000 lbs. •Wear life index of 300
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