Primary Drive Rear Aluminum Sprocket 42 Tooth Blue For Yamaha WR450F 2003-09

Primary Drive Rear Aluminum Sprocket 48 Tooth Blue For Yamaha WR450F 2003-09

Primary Drive Rear Aluminum Sprocket 51 Tooth Blue For Yamaha WR450F 2003-09

Primary Drive Rear Aluminum Sprocket 50 Tooth Blue For Yamaha WR450F 2003-09

Primary Drive Aluminum Rear Sprocket 43 Tooth Blue For YAMAHA WR YZ

Primary Drive Rear Aluminum Sprocket 43 Tooth Blue For YAMAHA WR250X 2008-2011

Primary Drive Rear Aluminum Sprocket 49 Tooth Blue For Yamaha WR450F 2003-09

Primary Drive Aluminum Rear Sprocket 50 Tooth Blue For YAMAHA WR YZ