MOOSE RACING Rear Sprocket - 48 Tooth - Yamaha 1211-251-48-11 Bearing Carrier These 50MM Lower Velocity Stacks

These 50MM Lower Velocity Stacks with Pivots were developed by Graves Motorsports for your Cross Plane Crank R1

Carbon Heal Guards

2003-2005 Yamaha YZ 450 F - - 2003-2005 Yamaha WR 450 F - - 2002-2005 Yamaha YZF 250 - - 2001-2005 Yamaha WR 250 F - - 2000-2005 Yamaha YZ 250 - - 2000-2005 Yamaha YZ 125 - - 2000-2002 Yamaha WR 400 F - - 2000-2002 Yamaha WR 426 F - - 2000-2002 Yamaha YZ 426 F

removable silencing insert

MOOSE RACING Rear Sprocket - 48 Tooth - Yamaha 1211-251-48-11 Bearing Carrier These 50MM Lower Velocity StacksThe 7075 T651 aluminum we use 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