Surly  Ultra New Disc Front Hub

Color: Black
Size: Front QRx100MM/6B/32H
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With hollow axles that make conversion to quick release super easy, the bolt-on Surly Ultra New hub is a nice upgrade for your daily ride.


  • Ultra New hub comes with fixing bolts, but is quick-release–compatible without axle conversion
  • Made with 6061-T6 forged and machined aluminum alloy with medium-height flanges
  • Axle is made of chromoly steel, while the fixing bolts are high-grade stainless steel for corrosion resistance, high strength and good looks
  • Fixing bolts tighten and loosen with a 6 mm hex wrench
  • Bolt caps and 'cone' nuts are also stainless steel, and are heavily knurled for good bite, reducing the chance for your wheel to slip in the frame under high load
  • Cones and dust caps interlock to maintain axle stiffness
  • Axle/cone system uses a specific shouldered axle that allows the hub to be completely adjustment-free and simple to service
  • Ultra New hub spins on non-adjustable 6901 model bearings
  • Stainless 6 mm bolts are included; quick-release skewer is not included


View all Surly Bike Hubs

Technical Specs

Item #224397
Best Use


Hub Position


Hub Brake Design

6-bolt Disc

Freehub Standard

Not Applicable

Spoke Interface


Axle Type


Axle Spacing

9 x 100 mm Bolt-on

Spoke Hole Count


Bearing Type

Cup and Cone


280 grams


6061-T6 aluminum alloy/chromoly steel/stainless steel

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