BIKE DRIVE DUAL SPROCKETS (CON’T) FITS MODEL STANDARD GEARING REAR SIZE PART # COLOR 52 1210-1488 SILVER 52 1210-1489 BLUE YZ/WR400/426F 99-02 14/49 48 1210-1475 BLACK 48 1210-1476 SILVER 48 1210-1477 BLUE 49 1210-1478 BLACK 49 1210-1479 SILVER 49 1210-1480 BLUE 50 1210-1481 BLACK 50 1210-1482 SILVER 50 1210-1483 BLUE 51 1210-1484 BLACK 51 1210-1485 SILVER 51 1210-1486 BLUE 52 1210-1487 BLACK 52 1210-1488 SILVER 52 1210-1489 BLUE YZ450F 03-04 14/48 48 1210-1475 BLACK YZ450F 05 14/51 48 1210-1476 SILVER YZ450F 06-10 13/49 48 1210-1477 BLUE YZ450F 11-13 13/48 49 1210-1478 BLACK DUAL SPROCKETS (CON’T) FITS MODEL STANDARD GEARING REAR SIZE PART # COLOR YZ450F 14-25 13/50 50 1210-1482 SILVER WR450F 03-06 13/49 49 1210-1480 BLUE WR450F 07-25 13/50 50 1210-1481 BLACK YZ450FX 16-25 50 1210-1482 SILVER 50 1210-1483 BLUE 51 1210-1484 BLACK 51 1210-1485 SILVER 51 1210-1486 BLUE 52 1210-1487 BLACK 52 1210-1488 SILVER 52 1210-1489 BLUE SPROCKET GUIDE (CON’T) ALUMINUM SPROCKETS FITS MODEL CHAIN STANDARD GEARING REAR SIZE STEEL PART # BLACK PART # SILVER PART # BLUE PART # RED PART # ORANGE PART # RR 250 05-12 520-120 14/52 41 - - - - - - RR 350 11-12 520-120 13/50 42 - - - - - - RR 400/450 05-12 520-120 13/50 43 - - 1211-1533 - 1211-1645 - RR 498 12-13 520-120 13/48 44 - - - 1211-1901 - - RR 520 10-14 520-120 13/18 45 - - - - 1211-1647 - RR 500/525 05-11 520-120 14/50 46 - - - 1211-1903 1211-1648 - 47 1210-1733 1211-1439 1211-1537 1211-1904 - - 48 1210-1734 1211-1440 1211-1538 1211-1905 1211-1650 - 49 1210-1735 1211-1441 1211-1539 1211-1906 1211-1651 - 50 1210-1736 1211-1442 1211-1540 1211-1907 1211-1652 - 51 1210-1737 1211-1443 1211-1541 1211-1908 1211-1653 - 52 1210-1738 1211-1444 - - 1211-1654 - RR 250 13-18 520-120 13/49 41 - 1211-1846 - - 1211-1858 - RR 300/350 13-18 520-120 13/49 42 - 1211-1847 - - 1211-1859 - RR/RS 390 15-18 520-120 13/49 43 - 1211-1848 - - 1211-1860 - RR 400/450 13-18 520-120 13/50 44 - 1211-1849 - - - - RR/RS 430 15-18 520-120 13/48 45 - 1211-1850 - - 1211-1862 - RR 480 15-18 520-120 13/48 46 1210-1739 - - - 1211-1863 - RR 498 13-18 520-120 13/48 47 1210-1740 - - - - - 48 1210-1741 1211-1853 - - 1211-1865 - 49 1210-1742 1211-1854 - - 1211-1866 - 50 1210-1743 1211-1855 - - 1211-1867 - 51 1210-1744 1211-1856 - - 1211-1868 - 52 - - - - 1211-1869 - GASGAS EC/ECR 125 99-15 520-120 13/48 41 - - - - - - 42 - - - - - - 43 - - 1211-1533 - 1211-1645 - ALUMINUM & STEEL REAR SPROCKETS $30.95 - $64.95 ° The 7075 T651 aluminum used for these sprockets receives an extra tempering, which reduces distortion and provides optimal thickness vs typically thinner 7075 T6 sprockets ° 100% machined, no stamping or grinding ° Optimal tooth thickness results in maximum tooth and chain contact ° Most Moose Racing® rear sprockets come anodized in black; some Moose Racing® rear sprockets are available in red, orange, or blue (indicated by footnote) BETA YAMAHA (CON’T) YAMAHA (CON’T) 238
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