Steering Stabilizer for 1-1/8" Handlebars. With mounting kit for Yamaha YZ450F 2016-2019, YZ250F 2017-2019. On the 2019 WR450F you will need to sand the nub off the frame (see photo).
This damper has 20 low speed adjustments with detente clicks and 12 high speed adjustments with lobe clicks. The linkage is greased and sealed with a rubber boot for long life and is adjustable for ware. The unit as shown weighs aprox. 1.2 Lb (544 grams)