AX56 12x142mm Thru-Axle

Thru-axle rear ends have been pivotal in stiffening the rear triangles of many modern bicycles. The AX56 12x142mm Thru Axle is Shimano’s SLX-level cross-country rear thru-axle. This axle is to be used with frames built to the Shimano/Syntace 12x142mm rear E-thru axle standard only.