NEW SOUTHWEST SPEED 17 TOOTH FRONT COUNTERSHAFT YAMAHA MOTORCYCLE SPROCKET, 520 CONVERSION, 13 SPLINE, YAMAHA YZF R6 FZ-750 FZX-700 FAZER FZ-700T FZR-750T, FZR-750R, FZR-750U FZ6 FZ6R FZ9R BIKES Brand New 520 Conversion Front Counter Shaft Sprocket SWS Part # 610-3217 Fits: | * Yamaha | * 1999 - 2010 Yamaha YZF R6 (All Models) | * 1985 - 1988 Yamaha FZ-750 | * 1986 - 1987 Yamaha FZX-700 Fazer | * 1987 Yamaha FZ-700T | * 1987 - 1988 Yamaha FZR-750T, FZR-750R, And FZR-750U | * 2004 - 2010 Yamaha FZ6 | * 2009 - 2010 Yamaha FZ6R | * 2004 - 2010 Yamaha FZ9R Features: | * Material: Steel | * Inside Spline Count: 13 Spline | * Outside Tooth Count: 17 Tooth 13 Tooth Sprocket Pictured | * Approximate Weight: 0.5 Lbs