Renthal Ultralight Aluminum Rear Sprocket Silver 45 Tooth (150U-520-45GBSI)

Rear Ultralight Sprockets:. Manufactured to extremely tight tolerances from a special material developed to withstand the stress of Supercross, Motocross and Enduro. 7075-T6 aluminum alloy rear chainwheels are 66% lighter than steel, yet incredibly durable. Advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life. Combination of a very high strength base material and an exceptionally hard-wearing surface result in significantly increased chainwheel life. Self cleaning mud grooves help prevent dirt build-up. Ultralight Silver, 45T, Ultralight

Vehicle Fitment

Yamaha WR250F 01-21

Yamaha WR400F 99-01

Yamaha WR426F 00-02

Yamaha WR450F 03-21

Yamaha YZ125 99-21

Yamaha YZ125X 20-21

Yamaha YZ250 99-21

Yamaha YZ250F 01-21

Yamaha YZ250FX 15-21

Yamaha YZ250X 16-21

Yamaha YZ400F 1999

Yamaha YZ426F 00-02

Yamaha YZ450F 03-21

Yamaha YZ450FX 16-21