BOLD MAGENTA part numbers are new for 2025 PARTS-UNLIMITED.COM 2025 | OFFROAD SPROCKETS SPROCKETS 634 SPROCKETS (CONT) FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # REAR SIZE PART # SPROCKET TYPE BETA (CONT) 480 RR 4T Enduro/ Racing 15-17 13-49 520-112 1212-0263 - - - 480 RR 4T Racing 18-23 13-48 520-112 35713 498 RR 13-14 13-48 520- 35714 500 RRS 4T Enduro 17-23 15-48 520-114 1212-0742 500 RS 4T Enduro 15-16 13-48 520-114 250 RR 05-09 14-52 520- 12 1212-0263 42 2-363142 (Steel) 250 RR 2T 13-19 13-49 520- 13 35713 43 2-363143 (Steel) 350 RR 12 13-50 520-114 14 35714 45 1210-0958 (Steel) 400 RR 4T Enduro 05-09 14-52 520-114 15 1212-0742 48 1210-0959 (Steel) 400 RR 4T Enduro 10-12 13-50 520-114 450 RR 05-09 14-52 520-114 450 RR 10-12 13-48 520-112 498 RR 12 13-48 520-112 520 RR 4T Enduro 10-11 13-48 520-112 525 RR 4T Enduro 05-09 14-50 520GASGAS MC 50 21-24 13-48 520-118 10 1212-1562 42 1211-1973 (Works/Orange) MC 65 21-24 13-48 420-112 11 1212-1563 MC 85 21-24 13-49 428-124 EC 125 03-11 13-48 520-112 12 34512 42 2-363142 (Steel) 13 34513 43 2-363143 (Steel) 45 1210-0958 (Steel) 48 1210-0959 (Steel) Enduro 125 00-02 13-52 520-118 - - 42 2-363142 (Steel) EC 200 00-02 13-51 520-116 43 2-363143 (Steel) EC 200 03-18 13-48 520-114 45 1210-0958 (Steel) EC 250 00 13-47 520-114 48 1210-0959 (Steel) EC 250 2T 01-18 13-48 520-112 EC 250 4T 11-12 13-48 520-114 XC 250 18 13-49 520-112 EC 300 00 13-47 520-114 - EC 300 01-12 13-48 520-114 EC 300 2T 13-18 13-48 520-114 XC 300 18 13-48 520-112 EC 400 FSE 00 13-48 520-116 EC 400 FSE 03-10 13-48 520-116 SM 400 FSE 03-04 13-42 520-112 EC 450 FSE 03-10 13-48 520-116 SM 450 FSE 03-05 13-42 520-112 EC 250F 12 13-50 520- 12 38812 42 2-363142 (Steel) EC 250F 13-15 13-48 520- 13 38813 43 2-363143 (Steel) EC 300F 13-15 13-48 520- 14 38814 45 1210-0958 (Steel) 48 1210-0959 (Steel) MC 125 21-24 13-48 520-118 12 1212-0263 48 1210-0357 (Steel) MC 250F 21-24 13-50 520-118 13 35713 50 1210-0359 (Steel) MC 450F 21-24 13-48 520-118 14 35714 50 1211-1107 (Works/Black) 15 1212-0742 50 1211-1338 (Works/Orange) 51 1211-1108 (Works/Black) 51 1211-1339 (Works/Orange) 52 1211-1109 (Works/Black) HONDA XR50R 00-03 14-37 420-78 14 10714 35 1211-0130 (Works/Gold) CRF50F 04-24 14-37 420-78 15 10715 37 1210-0169 (Steel) FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # REAR SIZE PART # SPROCKET TYPE HONDA (CONT) Z50A Mini Trail 69-70 13-34 420-74 - - 37 2-100337 (Steel) Z50A Mini Trail 71-78 12-37 420-76 Z50R 79-81 12-37 420-76 Z50R 82-87 13-37 420-76 13 10213 37 2-100337 (Steel) Z50RD 86 13-37 420-76 14 10214 15 10215 Z50R 88-89, 91-99 14-37 420-76 13 10213 37 2-100837 (Steel) 14 10214 15 10215 ZB50 88 15-37 420-100 13 10213 35 2-102235 (Steel) 14 10214 36 2-102236 (Steel) 15 10215 38 2-102238 (Steel) 44 2-102244 (Steel) 46 2-102246 (Steel) CR60R 83-84 14-45 420-104 13 10313 36 1210-0333 (Steel) 14 10314 38 1210-1053 (Steel) 15 10315 46 2-130846 (Steel) CT70 69-71 15-38 420-88 13 10313 35 2-102235 (Steel) CT70 72-82 13-35 420-86 14 10314 36 2-102236 (Steel) CT70H 70-72 14-45 420-92 15 10315 38 2-102238 (Steel) CT70 91-94 15-35 420-86 44 2-102244 (Steel) SL70 71-72 13-44 420-96 46 2-102246 (Steel) XL70 74-76 13-44 420-96 XR70R 97-99 15-36 420-86 13 10313 36 1210-0333 (Steel) 14 10314 38 1210-1053 (Steel) 15 10315 46 2-130846 (Steel) XR70R 00-03 15-36 420-86 14 10714 36 1210-0333 (Steel) CRF70F 04-11 15-36 420-86 15 10715 38 1210-1053 (Steel) CRF70F 12 15-36 420- 46 2-130846 (Steel) XL75 77-79 14-36 420-94 13 10213 35 2-102235 (Steel) XR75 73-76 14-44 420-100 14 10214 36 2-102236 (Steel) XR75 77-78 14-46 420-100 38 2-102238 (Steel) 44 2-102244 (Steel) 46 2-102246 (Steel) CR80R 80-81 14-47 420-108 13 10313 - - - 14 10314 15 10315 CR80R 82-83 14-45 420-112 13 10313 36 1210-0333 (Steel) CR80R 84 14-49 420-114 14 10314 38 1210-1053 (Steel) 15 10315 46 2-130846 (Steel) CR80R 85 15-49 420-114 13 10313 47 1210-0170 (Steel) 14 10314 49 2-145649 (Steel) 15 10315 50 1210-0339 (Steel) 51 2-145651 (Steel) 55 1210-0340 (Steel) 56 1210-0341 (Steel) CR80R 86-95 15-49 420-114 14 10714 47 1210-0170 (Steel) CR80R 96-02 16-49 420-116 15 10715 49 2-145649 (Steel) CR80RB Expert 96-02 15-55 420-126 50 1210-0339 (Steel) CR85R 03-04 15-49 420-116 51 2-145651 (Steel) CR85R 05-07 14-49 420-116 55 1210-0340 (Steel) CR85RB Expert 03-04 15-56 420-116 56 1210-0341 (Steel) CR85RB Expert 05-07 15-57 420-116 XL80S 80-85 15-37 420-96 13 10313 35 2-102235 (Steel) 14 10314 36 2-102236 (Steel) 15 10315 38 2-102238 (Steel) 44 2-102244 (Steel) 46 2-102246 (Steel) XR80 79-84 14-46 420-100 13 10213 35 2-102235 (Steel) 14 10214 36 2-102236 (Steel) 15 10215 38 2-102238 (Steel) 44 2-102244 (Steel) 46 2-102246 (Steel) CRF80F 04-13 14-46 420-110 13 10213 36 1210-0333 (Steel) XR80R 85-03 14-46 420-110 14 10214 38 1210-1053 (Steel) 15 10215 46 2-130846 (Steel) CT90 Trail 90 68 15-45 428-100 - - 45 1210-0178 (Steel) CT90 Trail 90 69-72/74-79 15-45 428-104
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