Surly Ultra Singlespeed Rear Disc Hub
Best durable hub for dedicated singlespeed mountain bike enthusiasts
This is the ultimate set-it-and-forget-it component for riders who value mechanical simplicity over endless tinkering. By ditching complex adjustment systems for a rock-solid, fixed design, you trade the ability to fine-tune your bearings for a hub that genuinely thrives on neglect and hard, daily abuse.
$100.00
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Who it's for
- Commuters seeking a reliable hub that requires minimal mechanical attention.
- Year-round riders needing components that withstand salt, mud, and grit.
- Custom bike builders looking for a flexible singlespeed foundation.
Who should skip it
- Weight-conscious cyclists prioritizing a lightweight climbing or racing setup.
- Technical mountain bikers who require immediate power transfer on climbs.
- Owners of modern frames with proprietary or oversized thru-axle standards.
Performance breakdown
Maintenance simplicity
Adjustment-free axle system removes the headache of regular bearing tuning.
Structural durability
Forged aluminum shell and chromoly axle handle heavy, rigorous daily abuse.
Security and grip
Aggressive knurling ensures the wheel stays locked tight under high torque.
Weight efficiency
Built for strength over weight, it carries a noticeable, sturdy heft.
Singlespeed compatibility
Purpose-built geometry makes this a gold standard for dedicated singlespeed setups.
Disc brake integration
Standard 6-bolt interface offers reliable, consistent stopping power for any terrain.
Key Specs
Position
Rear
Brake Type
Disc Brake (6-Bolt)
Axle Type
Bolt-On
Hub Spacing
10 x 135mm
Drive Type
Single Speed
Spoke Count
32H
Spoke Type
J-Bend
Bearing Type
Sealed Cartridge
Weight
376g
Material
6061-T6 Aluminum shell, 4130 Chromoly axle
Know before you buy
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