BOLD MAGENTA part numbers are new for 2023 PARTS-UNLIMITED.COM 2023 | OFFROAD SPROCKETS 590 JT SPROCKETS (C0NT) FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # NOTES REAR SIZE PART # NOTES YAMAHA (CONT) TT-R250 99-06 13-52 520-110 13 1212-0229 40 1211-2602 BLK 44 JTR853-44 ST 44 1211-2603 BLK 45 JTR853-45 ST 46 JTR853-46 ST 46 1211-2604 BLK 48 JTR853-48 ST 48 1211-2605 BLK 49 JTR853-49 ST 50 JTR853-50 ST 50 1211-2606 BLK 51 1211-2607 BLK 52 JTR853-52 ST 52 1211-2608 BLK TY250 74-77 14-53 428-114 12 1212-0215 - - 13 JTF1263-13 14 JTF1263-14 15 JTF1263-15 16 JTF1263-16 XT250C 84 15-48 520-106 13 JTF431-13 47 JTR845-47 ST XT250 84 15-48 520-106 XT250 08-21 15-48 428-128 15 1212-0762 48 1210-0628 ST YZ250 74 13-50 520-106 - - 40 1211-2602 BLK YZ250 75 13-52 520-106 40 JTR853-40 ST YZ250 76 13-50 520-106 41 JTR853-41 ST MX250 75 13-50 520-106 42 JTR853-42 ST 43 JTR853-43 ST 44 JTR853-44 ST 44 1211-2603 BLK 45 JTR853-45 ST 46 JTR853-46 ST 46 1211-2604 BLK 48 JTR853-48 ST 48 1211-2605 BLK 49 JTR853-49 ST 50 JTR853-50 ST 50 1211-2606 BLK 51 1211-2607 BLK 52 JTR853-52 ST 52 1211-2608 BLK YZ250 77 13-54 520-108 10 JTF569-10 40 1211-2602 BLK YZ250 78-79 13-48 520-108 11 JTF569-11 40 JTR853-40 ST YZ250 80 13-48 520-106 12 JTF569-12 41 JTR853-41 ST YZ250 81 14-48 520-110 13 JTF569-13 42 JTR853-42 ST YZ250 82 13-45 520-110 14 JTF569-14 43 JTR853-43 ST YZ250 83-84 13-48 520-112 15 JTF569-15 44 JTR853-44 ST YZ250 85-86 14-50 520-114 16 JTF569-16 44 1211-2603 BLK YZ250 87-90 14-49 520-114 17 JTF569-17 45 JTR853-45 ST YZ250 91-93 14-49 520-116 46 JTR853-46 ST YZ250 94-97 13-49 520-114 46 1211-2604 BLK YZ250 98 14-50 520-114 48 JTR853-48 ST YZ250WR 89 14-49 520-114 48 1211-2605 BLK YZ250WR 90 14-51 520-114 49 JTR853-49 ST WR250 91-96 14-52 520-116 50 JTR853-50 ST 50 1211-2606 BLK 51 1211-2607 BLK 52 JTR853-52 ST 52 1211-2608 BLK YZ250 99-23 14-50 520-114 12 1212-0520 SC 48 1211-0825 AL YZ250X 16-22 14-50 520- 13 1212-0521 SC 48 1210-2441 SC 14 1212-0522 SC 48 1211-2577 BLU 15 JTF565-15 SC 48 1211-2647 BLK 16 JTF565-16 SC 48 1210-2601 GR 49 1211-0826 AL 49 1210-2442 SC 49 1211-2578 BLU 49 1211-2648 BLK 49 1210-2602 GR 50 1210-2443 SC FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # NOTES REAR SIZE PART # NOTES YAMAHA (CONT) YZ250 99-23 (CONT) 14-50 520-114 12 1212-0520 SC 50 1211-2579 BLU YZ250X 16-22 14-50 520- 13 1212-0521 SC 50 1211-2649 BLK (CONT) 14 1212-0522 SC 50 1210-2603 GR 15 JTF565-15 SC 51 1210-2444 SC 16 JTF565-16 SC 51 1211-2580 BLU 51 1211-2650 BLK 51 1210-2604 GR 52 1211-2581 BLU 52 1211-2651 BLK YZ250F 01-06 13-48 520- 12 JTF1590-12 48 1211-0825 AL YZ250F 07-11 13-49 520- 13 1212-0512 SC 48 1210-2441 SC YZ250F 12-23 13-50 520-114 14 1212-0830 SC 48 1211-2577 BLU WR250F 01-06 13-52 520 48 1211-2647 BLK WR250F 07-13 13-50 520-114 48 1210-2601 GR YZ250FX 15-22 13-51 520- 49 1211-0826 AL 49 1210-2442 SC 49 1211-2578 BLU 49 1211-2648 BLK 49 1210-2602 GR 50 1210-2443 SC 50 1211-2579 BLU 50 1211-2649 BLK 50 1210-2603 GR 51 1210-2444 SC 51 1211-2580 BLU 51 1211-2650 BLK 51 1210-2604 GR 52 1211-2581 BLU 52 1211-2651 BLK BW350 87-88 14-37 520-76 12 JTF422-12 - - 13 JTF422-13 14 JTF422-14 TT350 86-87 14-50 520-108 14 JTF575-14 40 1211-2602 BLK 15 JTF575-15 44 JTR853-44 ST 44 1211-2603 BLK 45 JTR853-45 ST 46 JTR853-46 ST 46 1211-2604 BLK 48 JTR853-48 ST 48 1211-2605 BLK 49 JTR853-49 ST 50 JTR853-50 ST 50 1211-2606 BLK 51 1211-2607 BLK 52 JTR853-52 ST 52 1211-2608 BLK XT350 85-00 19-55 428-130 19 JTF576-19 47 JTR1842-47 ST 49 JTR1842-49 ST 50 JTR1842-50 ST 51 JTR1842-51 ST 54 JTR1842-54 ST 55 JTR1842-55 ST DT360 74 15-44 520-104 12 1212-0520 SC - - MX360 73-74 15-51 520-106 13 1212-0521 SC RT1 70-71 14-39 520-102 14 1212-0522 SC RT1MX 70 14-44 520-110 15 JTF565-15 SC RT2 72 15-39 520-102 16 JTF565-16 RT3 73 15-39 520-102 RT1MX 70 14-44 520-110 DT400 75-76 14-40 520-104 12 1212-0520 SC - - 13 1212-0521 SC 14 1212-0522 SC 15 JTF565-15 SC 16 JTF565-16 KEY TO NOTES: LW = Lightweight front. ST = Steel. AL = Aluminum. RB = Rubber cushioned. SC= Self-cleaning steel. BLK = RaceLite black aluminum sprocket ORG = RaceLite orange aluminum sprocket RED = RaceLite red aluminum sprocket BLU = RaceLite blue aluminum sprocket GR = Twinstar, graphite T6 aluminum center with high carbon steel outer ring
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