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