Ultra New Hub Axles
Surly Ultra New Axle Kits are for upgrading the internals of your existing Surly New hubs or replacing the internals on your Surly Ultra New hubs.
Compatible with Surly New hubs (upgrade kit) and Surly Ultra New hubs (replacement kit)
Each kit contains an axle, two 6901 cartridge bearings, two aluminum dust shields, two stainless steel cones, two stainless steel 6x1mm bolts, and two stainless steel bolt washers
Axle is quick release and bolt-on compatible; bolts included, QR is NOT included
Standard Surly New hubs come stock with 7901 bearings; this kit uses 6901 bearings which are non-angular
Ultra New Hub Axle Kit Instructions