- Adjustable, sealed, full-compliment angular-contact bearings; same 7901 bearings used front and rear
- Standard, easily-replaceable, non-proprietary, CroMoly axles
- Threaded for track cog and lockring on one side and BMX freehweel on the other
- Bolt on axle
- Surly New Road Hub. 130mm spaced for fixed gear and single speed freewheels
