Part No. RHKFSC20-B RHK front sprocket covers are designed to keep mud out of front sprocket area. CNC machined from 6061-T6 aluminium. Colour anodized with silver cut out and 2 tone surface finish. For use with Rec Reg. Fitment. Yamaha YZ 250F 2014-On Yamaha YZ 450F 2014-On Yamaha YZ 250 FX 2015-On Yamaha YZ 450 FX 2016-On Yamaha WR 250F 2015-On Yamaha WR 450F 2016-On