Shimano SM-AX56-A E-Thru Axle - 12 x 142mm Rear Hub Quick-Release CheckoutSpec= TTX Air } High performance bottom bracket

} High performance bottom bracket

Center Lock Disc Mount

Built on reliable 350 hubs with 36 tooth ratchet engagement

Updated internals for improved durability

ABEC-3 bearings are made of Grade 10 chromium steel balls

Shimano SM-AX56-A E-Thru Axle - 12 x 142mm Rear Hub Quick-Release CheckoutSpec= TTX Air } High performance bottom bracketFor modern disc brake bicycles Shimano's E THRU axles deliver ease of use and wheel fixing security thanks to quality materials and Shimano's internal cam mechanism. Weight saving design features a hollow axle Compatible with current dropout parts M12x1. 5mm axle thread pitch Color Black Rear Axle Type 12mm Thru x 142mm Weight 75 Thread Pitch 1. 5 Thread Length (mm) 15 Axle Diameter (mm) 12 Over Locknut (mm) 142 Overall Length (mm) 171 Axle Size 12 X