Made from 6061-T6 billet aluminium. Available in 5 colours.morn Replaces OEM original spacers. Designed not to fall out when you change wheels. Eliminates that third hand when changing wheels. CNC machined from billet aluminium. Fitment. RHK Yamaha Blue Axle Spacers Front WR 250 F 2020-2022 RHK Yamaha Blue Axle Spacers Front WR 450 F 2019-2022 RHK Yamaha Blue Axle Spacers Front YZ 250 FX 2015-2022 RHK Yamaha Blue Axle Spacers Front YZ 450 FX 2016-2022 RHK Yamaha Blue Axle Spacers Front YZ 250 F 2014-2022 RHK Yamaha Blue Axle Spacers Front YZ 450 F 2014-2022 RHK Yamaha Blue Axle Spacers Front WR 450 FSP Aussie Edition 2021