Wolf Tooth Front Thru Axle - RockShox 15 x 110mm PurpleWolf Tooth Front Thru Axle RockShox 15 x 110mm Purple. The Wolf Tooth axle uses a captive steel washer under the head to reduce friction on the fork leg. This protects your expensive fork transfers more of the tightening torque to clamping load for a stiffer interface and prevents the axle from sticking or galling when you want to remove it. These are also a great replacement option for lost or damaged stock axles. Always apply a small amount of