Made from 7075-T6 billet aluminum and CNC-machined for maximum fit accuracy. Features a radial mud groove etched just inside the sprocket teeth to shed mud and grit which saves weight and increases chain life.

Fits '03~'13 YZ450F, '01~'13 YZ250F, '03~'13 WR450F, '01~'13 WR250F, '99~'13 YZ250/ YZ125; also YZ426F models