The Surly Ultra New Rear Hub offers classic fix/free versatility in a wide 135mm spacing, ideal for touring, singlespeed mountain bikes, or commuters wanting extra tire clearance and wheel strength. With a fixed cog thread on one side and freewheel threading on the other, it gives you flexibility in how you ride. The durable aluminum shell and sealed cartridge bearings provide smooth, low-maintenance performance, while the bolt-on axle ensures a secure fit.
The Surly Ultra New Rear Hub offers classic fix/free versatility in a wide 135mm spacing, ideal for touring, singlespeed mountain bikes, or commuters wanting extra tire clearance and wheel strength. With a fixed cog thread on one side and freewheel threading on the other, it gives you flexibility in how you ride. The durable aluminum shell and sealed cartridge bearings provide smooth, low-maintenance performance, while the bolt-on axle ensures a secure fit.
Specs:
Hub Type: Rear, fix/free
Axle Type: 9mm axle, bolt-on (not quick release)
Spacing: 135mm
Drilling: 32 holes
Threading: Fixed cog on one side, freewheel on the other
Bearings: Sealed cartridge bearings
Material: CNC-machined aluminum shell
Color: Black anodized
Intended Use: Singlespeed, touring, commuting, or fixed gear setups with wider spacing
