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

Flange Diameter, Left	58
Flange Diameter, Right	45
Center to Flange, Left	27
Center to Flange, Right	42
Front Axle	15mm Thru x 110mm
Color	Black, Lime, Orange, Purple, Turquoise
Bearing Type	Sealed Cartridge
Weight	165
Defined Color	Black, Blue, Green, Orange, Purple
Spoke Interface	J-Bend
Hub Drilling	28, 32
Hub/Brake Compatibility	6-Bolt Disc