Hubs

Surly's Ultra New Disc Rear Hub is just the thing for singlespeed fanatics and one-gear mountain riders. This gorgeous hunk of aluminum boasts reliable sealed bearings and a 6-bolt disc attachment on one side and threads for a singlespeed freewheel (or fixed cog) on the other. A hollow axle lets you choose how to secure it to your dropouts. You have choice between the included fixing bolts or a quick release skewer (sold separately). And, that aforementioned chromoly axle is flex-free to take all the abuse you can dish out, and then some!

Replacement Shimano/SRAM freehub body for Stan's NoTubes 3.30 rear hubs.

Stan's 3.30/3.30Ti Hub Kit converts Stan's 3.30 front hubs from quick-release to through-axle compatible. Installation is easy—just pull the old ones off and put the new ones on. Conversion kits available in 12mm and 15mm.

Stan's 3.30HD 12 x 142mm Hub Kit converts Stan's 3.30HD rear hubs from 12 x 135mm to 12 x 142mm.

Stan's 3.30HD 15mm Hub Kit makes Stan's 3.30HD front hubs 15mm through-axle compatible. Installation is easy—just pull the old ones off and put the new ones on.

Stan's 3.30HD QR Hub Kit makes Stan's 3.30HD front hubs quick-release compatible. Installation is easy—just pull the old ones off and put the new ones on.

High quality sealed bearing hub is available in traditional and modern configurations. - Steel axle, aluminum end caps with steel knurled contact surfaces - Same proven driver mechanism as higher priced models - Spoke Interface: J-Bend - Hub/Brake Compatibility: 6-Bolt Disc - Skewer Included: No - Bearing Type: Sealed Cartridge

Whether your joy comes from barreling downhill, or tearing up to the top, SRAM's MTH 746 rear hub will leave a smile on your face. An aluminum hubshell with machined flanges grant the hub a low weight without compromising durability. Plus, tough cartridge bearings roll smooth for the long haul.

- Aluminum alloy shells resist corrosion and provide lightweight longevity - Sealed cartridge bearings offer smooth operation while resisting contaminants - Thru axle design with 8-10 speed cassette and XD drivetrain options - Brake Type: 6B

The new standard for durability and price. - Patented Star-Ratchet system - Contact-free seals and high precision build guarantee smooth bearings - Press-fit end caps allow tool-free maintenance and conversion

Ratchet freehub bodies have a gloss finish and don't have a seal, as this is fixed on the hub shell. The Ratchet System was the first of this type for DT Swiss; used in the mid-range products like the 350 hubs.