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
• Hub Drilling: 32
• Hub/Brake Compatibility: 6-Bolt Disc
• Color: Black
• Spoke Interface: J-Bend
• Center to Flange, Left: 27
• Bearing Type: Sealed Cartridge
• Center to Flange, Right: 42
• Flange Diameter, Right: 45
• Defined Color: Black
• Front Axle: 15mm Thru x 110mm
• Flange Diameter, Left: 58
• Weight: 165