Hydra Classic Rear Hub drivers and single cogs you're gonna show up to

you're gonna show up to the trailhead with plenty of style

and light enough to make XC racers smile

and a unique high-end full CNC aesthetic

The all-new Roubaix Expert now delivers compliance without compromise by introducing a radical new Future Shock 2

Hydra Classic Rear Hub drivers and single cogs you're gonna show up toIndustry 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