BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | OFFROAD SPROCKETS SPROCKETS 606 SPROCKETS FRONT SPROCKETS •CNC-machined from case-hardened and core-refined 655M13 nickel chromium steel •Machined self-cleaning mud grooves at each tooth to help prevent mud buildup and increase wear resistance •Certain models available in ultralight design for a 10 to 15% weight savings FRONT SPROCKET KEY: GR = GROOVED ST = STANDARD UL = ULTRALIGHT ULG = ULTRALIGHT GROOVED REAR SPROCKETS •CNC-machined from a specially enhanced 7075-T6 aluminum alloy •Machined self-cleaning mud grooves at each tooth to help prevent mud buildup and increase wear resistance • Ultralight design is 66% lighter than steel, yet incredibly durable • Silver available for all models; black, blue, red and orange anodized finish available for certain models • #1 sprocket used in supercross, motocross and off-road throughout the world FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # REAR SIZE PART # COLOR BETA 250 RR 05-12 14-52 520-120 11 ST 1212-1300 50T 1211-1142 Silver 350 RR 11-12 13-50 520-120 12 ST 1212-1301 51T 1211-1143 Silver 400 RR 10-12 13-50 520-120 13 GR R292-520-13 450 RR 10-12 13-48 520-120 13 ULG 1212-08841 498 RR 12 13-48 520-120 14 GR R292-520-14 520 RR 10-11 13-48 520-120 14 ULG 1212-08851 15 GR 1212-0046 125 RR 2T 18-24 - 520-116 11 ST 1212-1300 - - - 200 RR 2T 19 - 520-114 12 ST 1212-1301 200 RR 2T 20-24 - 520-116 13 GR R292-520-13 250 RR 2T 20-25 - 520-116 13 ULG 1212-08841 250/300 Xtrainer 2T 24-25 - 520-116 14 GR R292-520-14 300 RR 2T 19-25 - 520-116 14 ULG 1212-08851 350 RR 4T 20-25 - 520-116 15 GR 1212-0046 390 RR 4T 17-18 - 520-114 390 RR 4T 20-25 - 520-116 430 RR 4T 17-18 - 520-112 430 RR 4T 23-25 - 520-116 GASGAS MC-E 3 24 - 415-112 - - 36T 1211-1208 Black MC-E 5 21-24 - 415-112 36T 1211-2489 Orange MC 50 24 - 415-112 38T 1211-1209 Black 38T 1211-2490 Orange 40T 1211-1210 Black 40T 1211-2491 Orange MC 50 21-23 - 415-112 10 ST 1212-0825 36T 1211-1208 Black 11 ST 1212-0826 36T 1211-2489 Orange 12 ST 1212-0827 38T 1211-1209 Black 38T 1211-2490 Orange 40T 1211-1210 Black 40T 1211-2491 Orange MC 65 21-23 - 420-130 14 GR 1212-0708 46T 1211-2465 Orange 46T R192U-42046 Silver 47T 1211-2466 Orange 47T R192U-42047 Silver 48T 1211-2467 Orange 48T R192U-42048 Silver 49T R192U-42049 Silver 50T 1211-2468 Orange 50T 1211-0087 Silver MC 65 24 - 420-112 13 ST 1212-2326 46T 1211-2465 Orange 14 ST 1212-2327 46T R192U-42046 Silver 47T 1211-2466 Orange 47T R192U-42047 Silver 48T 1211-2467 Orange 48T R192U-42048 Silver 49T R192U-42049 Silver 50T 1211-2468 Orange 50T 1211-0087 Silver FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # REAR SIZE PART # COLOR GASGAS (CONT) MC 65 25 14-48 420-112 13 ST 1212-2326 46T 1211-2882 Black 14 ST 1212-2327 46T 1211-2883 Orange 46T 1211-2884 Silver 47T 1211-2885 Black 47T 1211-2886 Orange 47T 1211-2887 Silver 48T 1211-2888 Black 48T 1211-2889 Orange 48T 1211-2890 Silver 49T 1211-2891 Black 49T 1211-2892 Orange 49T 1211-2893 Silver 50T 1211-2894 Black 50T 1211-2895 Orange 50T 1211-2896 Silver MC 85 21 - 428-130 13 GR 1212-1458 46T 1211-1722 Blue MC 85 17/14 23-25 - 428-124 14 GR 1212-1459 46T 1211-2482 Orange MC 85 19/16 22-25 - 428-124 46T 1211-3103 Purple 46T 1211-0088 Silver 47T 1211-1723 Blue 47T 1211-2483 Orange 47T 1211-3104 Purple 47T 1211-0089 Silver 48T 1211-1724 Blue 48T 1211-2484 Orange 48T 1211-3105 Purple 48T 1211-0090 Silver 49T 1211-1725 Blue 49T 1211-3107 Purple 49T 1211-0091 Silver 50T 1211-1726 Blue 50T 1211-2486 Orange 50T 1211-3108 Purple 50T 1211-0092 Silver EC 125 Enduro 10-15 - 520-120 - - 50T 1211-1142 Silver EnduroGP 250/300 18 - 520-112 51T 1211-1143 Silver EC 300 18-19 - - FSE 400/450 Enduro 02-12 13-48 520-120 Standard Ultralight 1 Ultralight.
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