Wolf Tooth Rear Thru Axle - M12 1.0 x 159mm for X12 x 142mm Black TT (Effective)-53 Replacement extension tower for Zipp

Replacement extension tower for Zipp aerobars

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Relatively flat upper shape maximizes rider maneuverability facilitating fast position changes

Wolf Tooth Rear Thru Axle - M12 1.0 x 159mm for X12 x 142mm Black TT (Effective)-53 Replacement extension tower for ZippWolf Tooth Rear Thru Axle M12 1. 0 x 159mm for X12 x 142mm Black. 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 stiffer interface and prevents the axle from sticking or galling when you want to remove it. Made in Minnesota to aerospace standards TECH SPECS Axle Diameter (mm) 12 Color Black