Front Sprocket Lock Tab - Replaces Yamaha OEM 90215-26024. This front sprocket lock tab locks the countershaft sprocket nut in place after final-drive service.Replace this lock tab whenever the tab is cracked, flattened, reused too many times, or no longer bends cleanly against the nut.Fitment / CompatibilityFits Yamaha: Yamaha TX650 (1973-74) Yamaha TX750 (1973-74) Yamaha XS1 1970 Yamaha XS1B 1971 Yamaha XS2 1972 Yamaha XS650 (1976-78) Yamaha XS650S (1978, 1980-81) Product Details Front sprocket lock tab Replaces Yamaha OEM 90215-26024 Position: Front countershaft sprocket Sold individually XS650Direct part number: 22-0650 Before Ordering Confirm tooth count, chain size, spline or bolt pattern, offset, retainer style, and front/rear position. Inspect chain and mating sprocket before installing.