Wolf Tooth components, Wolf Axle (Rear), Thru Axle, Rear, Length: 178mm, Thread Length: 13mm, Thread Pitch: M12x1.50The Wolf Tooth Rear Axle does more than secure wheels When developing the Rear Axle, Wolf Tooth engineers knew that they wouldnt be able to get away with any old factory replacement part, even if it was made in Minnesota to aerospace standards The Wolf Tooth Rear Axle uses a captive steel washer under the head to reduce friction on the dropout face. This protects your expensive frame, transfers more of the tightening torque to clamping load for a