BOLD MAGENTA part numbers are new for 2024 BELTS, CHAINS & SPROCKETS PARTSCANADA.COM ATV/UTV | 2024 411 SIZE AND TYPE WEAR LIFE INDEX AVERAGE TENSILE STRENGTH (LB.) MAXIMUM ENGINE CC STREET/DIRT 520 Std. 100 6,800 250/250 530 Std. 100 6,800 400/NA GB 420 MXZ 200 5,000 150/150 GB 428 MXZ1 200 6,070 125/125 SIZE AND TYPE WEAR LIFE INDEX AVERAGE TENSILE STRENGTH (LB.) MAXIMUM ENGINE CC STREET/DIRT GB 520 MXZ5 300 8,500 NA/500 GB 520 MXU 600 8,000 NA/500 520 EXW, GB 520 EXW 1,000 7,700 750 FEATURES All RK chains are pre-stressed and pre-stretched to ensure equal load distribution and minimal maintenance.They’re made of the highest-grade medium carbon alloy steel available, with all components shot peened and heat treated. 420 MXZ AND GB 420 MXZ (GOLD COLOR) DESCRIPTION 420 MXZ NATURAL PART # 420 MXZ GOLD PART # 110 links 503644 RK420MXZ110 120 links 503513 RK420MXZ120 134 links 503645 503647 Clip connecting link 503550 R18422MXZ 428 MXZ1 AND GB 428 MXZ1 (GOLD COLOR) DESCRIPTION 428 MXZ1 NATURAL PART # 428 MXZ1 GOLD PART # 120 links 1221-0368 1221-0375 136 links 1221-0372 1221-0383 Clip connecting link 1225-0740 1225-0741 520 MXZ5 AND GB 520 MXZ5 (GOLD COLOR) DESCRIPTION 520 MXZ5 NATURAL PART # 520 MXZ5 GOLD PART # 110 links 1221-0405 - 120 links 1221-0410 - 130 links 1221-0412 - Clip connecting link 1225-0748 1225-0744 HEAVY-DUTY (MXZ/4) •Made for the serious motocross racer with all components heat-treated for high-performance durability •Features 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 •Chain includes clip connecting link M 428 H DESCRIPTION PART # 120 links 503485 136 links 503486 Clip connecting link 503487 M 520 H DESCRIPTION PART # 110 links 503488 120 links 503489 Clip connecting link 503491 HEAVY-DUTY (H) •Heavy-duty chain lasts much longer than standard chain •For use on motorcycles that did not come stock with an O-ring chain •Chain includes clip connecting link HOW TO ORDER RK chain is available cut-to-length or in bulk. Precut lengths are individually boxed with a clip-type connecting link, and all bulk rolls include clip-type connecting links.When ordering precut lengths, the number of links is indicated at the end of the PART # (example: PART #RKM52082 for a 520 Standard chain with 82 links).
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