Surly Ultra New Disc Front Hub – Precision, Strength, and Simplicity Combined

The Surly Ultra New Disc Front Hub is built with the same reliability and serviceability that made the original Surly New hubs legendary — only now it’s stronger, smoother, and even easier to maintain. Designed for riders who demand bulletproof performance on every ride, from all-day gravel grinders to off-road touring adventures, this hub delivers strength, simplicity, and long-lasting precision.

At its heart is a 6061-T6 forged aluminum hub shell, paired with 6901 sealed cartridge bearings for smooth rolling performance in all conditions. The 4130 CroMoly axle and stainless steel cones feature aggressive knurling on the cones and bolt caps, helping eliminate slippage under heavy torque or braking forces.

Whether you prefer quick release or bolt-on setups, the Ultra New Hub accommodates both — stainless 6mm bolts are included, though the QR skewer is not. The new shouldered axle/cone system ensures the hub stays completely adjustment-free, making service simple and long-term reliability a sure thing.

Finished in classic silver, this 6-bolt disc-compatible hub is the perfect choice for riders who value Surly’s trademark mix of durability, ease of use, and timeless design.

Specifications

• Material: 6061-T6 forged aluminum shell

• Bearings: 6901 sealed cartridge

• Axle: 4130 CroMoly steel, QR and bolt-on compatible

• Includes: Stainless 6mm bolts (QR skewer not included)

• Hub/Brake Compatibility: 6-bolt disc

• Spoke Count: 32-hole

• Front Axle: QR x 100mm

• Flange Diameter (L/R): 58mm / 58mm

• Center-to-Flange (L/R): 22.8mm / 32.2mm

• Color: Silver

• Weight: 280g