BOLD MAGENTA part numbers are new for 2025 BELTS, CHAINS & SPROCKETS PARTS-UNLIMITED.COM ATV/UTV | 2025 721 DESCRIPTION PART # 520RX3 100 links 1221-0089 110 links 1221-0090 DESCRIPTION PART # 520RX3 (CONT) 120 links 1221-0093 Clip connecting link 1225-0211 DESCRIPTION PART # 520RX3 (CONT) Rivet connecting link 1225-0210 RX3 SERIES • The ultimate off-road chain, developed to withstand the severe stresses of off-road riding, yet lightweight with maximum performance •Featuring specially shaped bushings and chromized pins for reduced elongation and maximum wear resistance • Larger diameter alloy carbon steel pins and thicker plates, shot-peened to provide increased tensile strength and better fatigue resistance •Extended bushings and solid rollers provide improved durability NO. OF LINKS PART # 76 1224-0046 78 1224-0047 80 1224-0048 84 1224-0049 NO. OF LINKS PART # 94 1224-0054 96 1224-0055 98 1224-0056 100 1224-0057 NO. OF LINKS PART # 104 1224-0058 110 1224-0059 120 1224-0060 Clip connecting link 1225-0225 NO. OF LINKS PART # Rivet connecting link 1225-0224 520 QUAD SERIES • The ultimate ATV chain, developed to withstand the severe stresses of ATV riding, yet lightweight with maximum performance • QUAD chain features Z44 sealing rings, which greatly improve performance and wear life, making previous X-ring and Z-ring chain obsolete •50% reduction in friction compared to traditional O-rings •Constant lubrication from special high-temperature grease in the critical pin/bushing area provides long life •High-carbon alloy pins to minimize wear and increase roller thickness to prolong durability DESCRIPTION PART # 520RH2 100 links 1220-0097 110 links 1220-0098 DESCRIPTION PART # 520RH2 (CONT) 120 links 1220-0102 Clip connecting link 1225-0216 DESCRIPTION PART # 520RH2 (CONT) Rivet connecting link 1225-0215 RH2 SERIES •Developed to withstand the severe stresses of off-road riding •Larger diameter alloy carbon steel pins and thicker plates offer increased tensile strength and fatigue resistance •Extended bushings and solid rollers provide improved durability •520RH2 is suitable for supermotard or motocross up to 450cc •Clip-type link included •Gold color •Thicker outer plates and quad-riveting for greater tensile strength •All parts are shot-peened for maximum fatigue resistance, and all chains are pre-loaded for superior performance and minimal adjustment •Suitable for ATVs up to 500cc • 8,093 ft./lbs. tensile strength •Gold color •Inner links are beveled to improve sprocket engagement, even in the worst off-road conditions •Suitable for motocross or supermotard bikes up to 500cc •Clip-type link included •Gold color
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