BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | STREET CHAINS & DRIVE BELTS 1070 520 ZRA NO. OF LINKS PART # 114 1224-0179 120 1224-0181 NO. OF LINKS PART # Clip connecting link 1225-0560 Rivet connecting link 1225-0559 525 ZRA NO. OF LINKS PART # 114 1224-0173 120 1224-0174 124 1224-0175 NO. OF LINKS PART # Clip connecting link 1224-0177 Rivet connecting link 1224-0176 520/525 ZRA CHAINS •Manufactured with high-carbon alloy steel • Shot-peened rollers, pins and plates •Solid bushings •Pre-stretched to enhance performance •Natural steel color NO. OF LINKS PART # 520ZRE 110 1224-0121 112 1224-0122 114 1224-0123 NO. OF LINKS PART # 520ZRE (CONT) 120 1224-0125 Clip connecting link 1225-0446 Rivet connection link 1225-0489 NO. OF LINKS PART # 525ZRE 110 1224-0168 120 1224-0169 Clip connecting link 1225-0491 520ZRE Z-RING CHAINS •High-performance ZR chain with Z44 seal Z-ring sections • Z-ring flexes when assembled, creating a spring effect that guarantees seal will not diminish over time •Z-ring section also provides enhanced chain flexibility • Features high alloy steel plates and pins, solid bushings and rollers and shot-peened plates, pins and rollers •Pre-stretched to enhance performance •Clip-type and rivet-type links included •Gold color NO. OF LINKS PART # 520DR 120 1221-0110 130 1221-0111 140 1221-0112 150 1221-0113 NO. OF LINKS PART # 520DR (CONT) 160 1221-0114 170 1221-0130 Connecting link, clip 1225-0223 Connecting link, rivet 1225-0222 NO. OF LINKS PART # 530DR 120 1221-0131 130 1221-0105 140 1221-0106 150 1221-0107 NO. OF LINKS PART # 530DR (CONT) 160 1221-0108 170 1221-0132 Connecting link, clip 1225-0221 Connecting link, rivet 1225-0220 520/530DR REGINA DRAG RACING CHAIN •Designed to withstand the severe application of drag racing •Features high-alloy steel in gold-colored plates and pins and solid bushings and rollers • Plates, pins and rollers are shot-peened for improved fatigue resistance • Breaking strength of 10,566 lbs. and a fatigue limit of 2,135 lbs. is sufficient up to Pro Stock level •Clip- and rivet-type link included NO. OF LINKS PART # 420OROY 100 1220-0090 110 1220-0091 NO. OF LINKS PART # 420OROY (CONT) 120 1220-0094 130 1220-0095 NO. OF LINKS PART # 420OROY (CONT) Clip connecting link 1225-0209 OROY SERIES •Extended bushings and solid rollers provide improved durability •Designed especially for smaller bikes up to 85cc •Clip-type link included •Gold color
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