New 1998–2023 Yamaha YZ250 / YZ450F – ProX 51 Tooth Rear Sprocket 07.RA22099-51

Pro X Aluminum Rear Sprocket 47 Tooth for YAMAHA TTR WR YZ

Pro X 07.RA22099-51 Aluminum Rear Sprocket 51 Tooth

Primary Drive Aluminum Rear Sprocket 51 Tooth Silver For YAMAHA WR YZ

Pro X Aluminum Rear Sprocket 51 Tooth for YAMAHA TTR WR YZ

Renthal Rear Sprocket 51 Tooth Black for YAMAHA TTR WR YZ

Vortex 520 Aluminum Rear Sprocket 51 Tooth Black for YAMAHA TTR WR YZ

Vortex 520 Aluminum Rear Sprocket 50 Tooth Blue For YAMAHA TTR WR YZ