BOLD MAGENTA part numbers are new for 2023 PARTS-UNLIMITED.COM 2023 | STREET CHAINS & DRIVE BELTS 1058 X-RING (XSO) • Pro X-ring chain lasts five to eight times longer than standard chain • Provides two more lubricant pools than conventional O-rings for longer life • Lubricated with specially formulated, vacuum-injected U-grease; locked in by tough Nitrile Butadine rubber X-rings • Polished and shot-peened link plates • High tensile strength ensures reliable performance • Cut-to-length and bulk chains include rivet connecting link • 520 XSO – For street and dirt bikes up to 750cc • GB 520 XSO – For street and dirt bikes up to 750cc • GB 525 XSO – For street bikes up to 900cc and dirt bikes up to 750cc 525 XSO - CUT-TO-LENGTH OR BULK NO. OF LINKS PART # SUG. RETAIL 108 1222-0455 $128.73 110 1223-0726 131.12 112 1222-0456 133.50 114 1222-0457 135.89 NO. OF LINKS PART # SUG. RETAIL 116 1222-0458 $138.27 120 1223-0727 143.04 122 1222-0459 145.42 130 1222-0460 154.96 X-RING (XSOZ1) • Lighter and stronger than RK’s original X-ring chain, the XSOZ1 allows riders to keep their stock chain size while reducing weight and increasing strength • By reducing overall material, it’s 12% lighter than its predecessor • Cut-to-length and bulk chains include rivet connecting link RK CHAIN ORDER CHART RK chain is available cut-to-length or in bulk rolls. Precut lengths are individually boxed with a clip-type connecting link; all bulk rolls include clip-type connecting links. GB 525 XSO (GOLD COLOR) - CUT-TO-LENGTH NO. OF LINKS PART # SUG. RETAIL 108 1222-0461 $141.84 110 GB525XSO-110 144.46 112 1222-0462 147.09 116 1222-0464 152.34 NO. OF LINKS PART # SUG. RETAIL 120 GB525XSO-120 $157.60 122 1222-0465 160.22 130 1222-0466 170.73 525 CONNECTING LINKS DESCRIPTION PART # SUG. RETAIL Rivet connecting link (gold) GB527XSO $9.49 Rivet connecting link (standard) 1225-0339 9.49 Clip connecting link (gold) 1225-0353 9.49 Clip connecting link (standard) 1225-0338 9.49 520 XSO - CUT-TO-LENGTH NO. OF LINKS PART # SUG. RETAIL 100 RK520XSO-100 $87.95 104 RK520XSO-104 91.46 106 RK520XSO-106 93.22 108 RK520XSO-108 94.98 110 RK520XSO-110 96.74 112 RK520XSO-112 98.50 NO. OF LINKS PART # SUG. RETAIL 114 RK520XSO-114 $100.26 116 RK520XSO-116 102.02 118 RK520XSO-118 103.78 120 RK520XSO-120 105.54 130 1223-0723 114.33 520 CONNECTING LINKS DESCRIPTION PART # SUG. RETAIL 100’ R18-520XSO $1,688.57 Clip connecting link R18-522XSO 8.43 Rivet connecting link R18-523XSO 8.43 530 DESCRIPTION PART # SUG. RETAIL 100’ 1223-0106 $2,358.70 Rivet connecting link 1225-0095 10.55 DESCRIPTION PART # SUG. RETAIL Clip connecting link 1225-0094 $10.55 530 XSOZ1 - CUT-TO-LENGTH OR BULK NO. OF LINKS PART # SUG. RETAIL 100 1223-0108 $122.85 102 1223-0109 125.31 108 1223-0112 132.68 110 1223-0113 135.13 112 1223-0114 137.59 NO. OF LINKS PART # SUG. RETAIL 114 1223-0115 $140.05 116 1223-0116 142.50 118 1223-0117 144.96 120 1223-0118 147.42 122 1223-1146 140.72 NO. OF LINKS PART # SUG. RETAIL 130 1223-1147 $159.70 140 1223-1148 171.99 152 1223-1149 186.73 SIZE AND TYPE WEAR LIFE INDEX AVG.TENSILE STRENGTH (LB.) MAXIMUM ENGINE CC STREET/DIRT STANDARD M420 100 4,200 80/80 M428 100 4,500 125/80 M520 100 6,800 250/NA M525 100 6,800 400/NA M530 100 6,800 400/NA HEAVY DUTY M420H 200 4,100 125/90 M428H 200 5,400 200/125 M520H 200 7,700 400/250 M525H 200 7,700 500/NA M530H 200 7,700 500/NA GB420MXZ 300 5,000 150/125 GB428MXZ 300 5,800 250/125 SIZE AND TYPE WEAR LIFE INDEX AVG.TENSILE STRENGTH (LB.) MAXIMUM ENGINE CC STREET/DIRT HEAVY DUTY (CONT) GB520MXZ4 300 9,000 500/NA 530DR 250 10,400 250 h.p. 530PRODR 250 11,900 320 h.p. SEALED RING GB520GXW 1,000 8,800 1000/750 GB525GXW 1,000 9,300 1100/800 GB530GXW 1,000 10,000 1400/900 520XSO 750 8,500 750/750 GB520XSO 750 8,500 750/750 GB525XSO 750 8,850 900/750 530XSOZ1 750 9,500 1000/1000 GB530XSOZ1 750 9,500 1000/1000 630SO 800 11,100 1300/NA 520 GOLD CONNECTING LINKS DESCRIPTION PART # SUG. RETAIL Gold clip connecting links GB521XSO $8.43 Rivet connecting links GB522XSO 8.43 GB 520 XSO (GOLD COLOR) - CUT-TO-LENGTH NO. OF LINKS PART # SUG. RETAIL 120 GB520XSO-120 $120.09 GB 530 DESCRIPTION PART # SUG. RETAIL Rivet connecting link 1225-0093 $10.55 Clip connecting link 1225-0092 10.55 GB 530 XSOZ1 (GOLD COLOR) - CUT-TO-LENGTH NO. OF LINKS PART # SUG. RETAIL 110 1223-0099 $148.48 114 1223-0101 153.88 116 1223-0102 156.58 NO. OF LINKS PART # SUG. RETAIL 130 1223-0105 $175.48 150 1223-1150 202.47 • 530 XSOZ1 – For street and dirt bikes up to 1000cc • GB 530 XSOZ1 – For street and dirt bikes up to 1000cc NOTE: If your motorcycle came factory-equipped with an O-ring chain, it must be replaced with an O-ring chain.
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