BOLD MAGENTA part numbers are new for 2025 PARTS-UNLIMITED.COM 2025 | OFFROAD SPROCKETS SPROCKETS 694 KEY TO NOTES: AL = Aluminum. LW = Lightweight front. RB = Rubber cushioned. SC= Self-cleaning steel. ST = Steel. BLK = RaceLite black aluminum sprocket. BLU = RaceLite blue aluminum sprocket. GLD = RaceLite gold aluminum sprocket. GR = Twinstar, graphite T6 aluminum center with high carbon steel outer ring. ORG = RaceLite orange aluminum sprocket. RED = RaceLite red aluminum sprocket. JT SPROCKETS (CONT) FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # NOTES REAR SIZE PART # NOTES YAMAHA (CONT) YZ400F 98 14-49 520-114 12 1212-0520 SC 40 1211-2602 BLK 13 1212-2002 ST 40 JTR853-40 ST 13 1212-0521 SC 41 JTR853-41 ST 14 1212-2003 ST 42 JTR853-42 ST 14 1212-0522 SC 43 JTR853-43 ST 15 JTF565-15 SC 44 JTR853-44 ST 16 JTF565-16 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 WR400F 99-01 14-49 520-114 13 1212-0521 SC 48 1211-2577 BLU 15 JTF565-15 SC 49 1211-2578 BLU 50 1211-2579 BLU 51 1211-2580 BLU 52 1211-2581 BLU YZ/WR426F 00-02 14-50 520-114 13 1212-2002 ST 46 1210-2408 ST YZ450F 03-04 14-48 520-114 13 1212-0521 SC 47 1210-1550 ST YZ450F 05-06 14-51 520-114 14 1212-2003 ST 48 1210-2441 SC YZ450F 07-09 13-49 520-114 14 1212-0522 SC 48 1211-2577 BLU WR450F 03-06 14-50 520-114 15 JTF565-15 SC 48 1211-2647 BLK WR450F 07-19 13-50 520-114 15 1212-1277 RB 48 1210-2601 GR YZ450F 19-23 13-49 520- 16 1212-1278 RB 49 1210-2442 SC YZ450FX 16-23 13-50 520- 49 1211-2578 BLU 49 1211-2648 BLK 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 52 1211-2581 BLU 52 1211-2651 BLK YZ465 80 14-46 520-102 10 JTF569-10 40 1211-2602 BLK IT465 81-82 14-44 520-108 11 JTF569-11 40 JTR853-40 ST YZ465 81 14-46 520-108 12 JTF569-12 41 JTR853-41 ST 13 JTF569-13 42 JTR853-42 ST 14 JTF569-14 43 JTR853-43 ST 15 JTF569-15 44 JTR853-44 ST 16 JTF569-16 44 1211-2603 BLK 17 JTF569-17 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 IT490 83-84 14-44 520-110 10 JTF569-10 40 1211-2602 BLK YZ490 82 14-44 520-110 11 JTF569-11 44 JTR853-44 ST YZ490 83-85 14-46 520-112 12 JTF569-12 44 1211-2603 BLK YZ490 86-90 14-48 520-112 13 JTF569-13 45 JTR853-45 ST 14 JTF569-14 46 JTR853-46 ST 16 JTF569-16 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 FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # NOTES REAR SIZE PART # NOTES YAMAHA (CONT) TT500 76 15-52 520-100 12 1212-0520 SC 40 1211-2602 BLK TT500 77-81 15-50 520-104 13 1212-2002 ST 40 JTR853-40 ST XT500 76-81 16-44 520-100 13 1212-0521 SC 41 JTR853-41 ST 14 1212-2003 ST 42 JTR853-42 ST 14 1212-0522 SC 43 JTR853-43 ST 15 JTF565-15 SC 44 JTR853-44 ST 16 JTF565-16 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 WR500 91-93 15-50 520-112 10 JTF569-10 40 1211-2602 BLK 11 JTF569-11 44 JTR853-44 ST 12 JTF569-12 44 1211-2603 BLK 13 JTF569-13 45 JTR853-45 ST 14 JTF569-14 46 JTR853-46 ST 15 JTF569-15 46 1211-2604 BLK 16 JTF569-16 48 JTR853-48 ST 17 JTF569-17 48 1211-2605 BLK 49 JTR853-49 ST 50 JTR853-50 ST 50 1211-2606 BLK 51 1211-2607 BLK 52 JTR853-52 ST XT550 82-83 15-42 520-98 13 1212-2008 ST 39 1210-0491 ST 14 JTF575-14 40 1210-2737 ST 15 JTF575-15 42 JTR857-42 ST 43 JTR857-43 ST 45 JTR857-45 ST TT600 83-86 14-50 520-112 13 1212-2008 ST 40 1211-2602 BLK 14 JTF575-14 44 JTR853-44 ST 15 JTF575-15 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 XT600 84-89 15-42 520-104 14 JTF575-14 - - XT600C 84-89 15-42 520-104 15 JTF575-15 XT600E 90-95 15-45 520-106 15 1212-1279 RB 39 1210-0491 ST 40 1210-2737 ST 42 JTR857-42 ST 43 JTR857-43 ST 45 JTR857-45 ST XT600E 90-95 (all) Lightweight rear sprocket 15-45 520-106 42 1212-0235 ST 45 1212-0236 ST
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