Surly Ultra New rear track hub

Surly's Ultra New hubs feature tool-free, self-adjusting bearing hardware that properly pre-loads the bearings when the wheel is installed. Who could ask for anything easier?

Available in three spacing options: 120mm for common track frames and 130mm or 135mm for converted road frames.

• 6061-T6 forged hub shell w/ 6901 sealed cartridge bearings

• 4130 cro-mo axle is quick release and bolt-on compatible (includes stainless M6 bolts & caps, qr skewer not included)

• 32h

• spacing: 120, 130 or 135mm

• chainline: 120mm spacing: 42.5mm; 130mm spacing: 47.5mm; 135mm spacing: 53.5mm

• fixed/free threading

• axle/cone system uses uses a shouldered axle that allows the hubs to be completely adjustment free

• flange diameter: 54.0mm

• center to flange: 31.0mm (120mm), 33.0mm (130mm), 37.5mm (135mm)

• bearing size: 6901

• colors: black, silver

• weight: 302g (including axle hardware)