BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | STREET SPROCKETS 1010 LIGHTWEIGHT STEEL SPROCKETS •One of the lightest 520 steel sprockets available today • Designed using proprietary EST Technology •Performance and longevity all in one sprocket •Attractive black zinc semi-gloss finish •Lowered surface to remove unnecessary weight •Available in a wide variety of tooth counts 1 Not for HP4 wheels. FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # REAR SIZE PART # APRILIA RS 660 21-25 Tuono 660 21-25 17-43 520-110 15 1212-2358 40 1210-1031 17-43 520-110 16 1212-2359 41 1210-1032 17 1212-2360 42 1210-1033 43 1210-1034 44 1210-2219 RSV4 10 RSV4 11-15 RSV4 16-24 RSV1000 98-04 RSV1000 05-09 Tuono 1000 04-10 Falco 1000 00-04 Tuono V4 1100 17-24 (520 conversion) 16-40 525-110 15 1212-0912 40 1210-1031 16-42 525-120 16 1212-0913 41 1210-1032 16-41 525-120 17 1212-0914 42 1210-1033 17-42 525-110 43 1210-1034 16-40 525-110 44 1210-2219 17-42 525-110 17-41 525-110 15-42 525-110 FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # REAR SIZE PART # BMW G 310 R 17-20 16-40 520-117 - - 45 1210-1040 47 1210-1042 F 650 94-95 F 650 Funduro 96-00 F 650 Strada 98-00 F 650 GS Dakar 01-04 F 650 GS 99-04 98-00 16-47 520-110 15 1212-0919 45 1210-1040 16-47 520-110 16 1212-0920 47 1210-1042 16-47 520-110 16-47 520-112 16-47 520-112 S 1000 R 14-20 S 1000 RR 09-11 S 1000 RR 12-18 (520 conversion) 17-45 525-118 15 1212-0916 43 1210-10351 17-44 525-118 16 1212-0917 44 1210-10361 17-45 525-118 17 1212-0918 45 1210-10371 46 1210-10381 47 1210-10391 S 1000 RR 19-25 (520 conversion) 17-45 525-120 15 1212-0916 45 1210-2485 17-45 525-120 16 1212-0917 46 1210-2486 17-45 525-120 17 1212-0918 47 1210-2487 1210-0927 1210-0937 1210-0946 1210-0954 1212-0842
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