Hubs

Shimano's Ultegra Hubs are flag-bearers for high-durability, smooth-rolling performance. Hardened steel cup-and-cone design use stainless steel bearings for minimal drag and superior ease of maintenance. Shimano's Digital Adjustment System makes hub maintenance fast, simple, and reduces axial force on the bearings, reducing wear and tear on the hub internals.

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.

- SPANK's HEX DRIVE 102T technology delivers 3.5° engagement, for almost instant pickup - 6 independent pawls with 3 steps per pawl, work in unison, meaning 18 engagement points per click - Bite-Block Alloy HG and XD Freehub bodies resist damage from cassettes without the weight penalty of steel - Unique flange design reduces dish requirement and minimizes tension range between drive-side and non-drive-side spokes - Advanced seal system improves prevention of bearing/drive system contamination

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