Hubs

SRAM's DualDrive is a unique drivetrain that combines a three-speed internal-gear hub with an external cassette and derailleur. The result is a wide-range of gears in a clean, one handed control system. SRAM's DualDrive Clickbox attaches to the DualDrive hub—and the DualDrive shifter via cable—so you can shift between the hub's three internal gears.

- Includes spacer to run 10sp cassettes - Machined and forged alloy construction - Sealed cartridge bearings - Lightweight design - Weight: 382g - Brake Type: RIM

Industry Nine Hydra Classic mountain hubs are loaded with features every rider will appreciate such as revolutionary 0.52° engagement, generously low weights and an intuitive layout that can be serviced without any proprietary tools. - From turning and milling bar stock 7075-T6 aluminum for shells, axles and encaps, wire EDM cutting A2 tool steel for pawls and driverings, to in-house anodization lab, every step of design, engineering, manufacturing and assembly is done to exacting standards in Asheville, NC - 690 P.O.E. Hydra Freehub body engages every .52 degrees yeilding telepathic control - Classic j-bend spoke interface - Steel cartridge bearings are durable - Easily serviced with no proprietary tools; Designed to keep you in the saddle and out of the service queue

Industry Nine Hydra Classic hubs are the heart of your wheelset, everything revolves around them, literally. Every Classic Hydra hub is made start to finish in Asheville, NC. From turning and milling bar stock 7075-T6 aluminum for shells, axles and encaps, wire EDM cutting A2 tool steel for pawls and driverings, to in-house anodization lab, every step of design, engineering, manufacturing and assembly is done to exacting standards. - 690 P.O.E. Hydra Freehub body engages every .52 degrees yeilding telepathic control - 6 pawl, 6 phase - 115 tooth drivering - Easily serviced with no proprietary tools. Designed to keep you in the saddle and out of the service queue - Classic j-bend spoke interface - Steel cartridge bearings are durable