Surly Ultra New Disc Front Hub - QR x 100mm 6-Bolt Black 32h. Surly Ultra New Disc Front Hubs.

6061-T6 forged hub shell (same as the Surly New); 6901 bearings

Axle is quick release and bolt-on compatible

Stainless 6mm bolts are included; quick release skewer is NOT included

4130 CroMoly axle and stainless cones; agressive knurling on cones and bolt caps for reduced slippage

New axle/cone system uses uses a specific shouldered axle that allows the hubs to be completely adjustment free and simple to service