Industry Nine Hydra 2 Classic Rear Hub - 12 x 157mm 6-Bolt Micro Spline BLK 28H

We’re a mission-driven bike shop based in Colorado. Every sale helps refurbish and donate bikes to those in need through Bicycles for Humanity Colorado.

Each item has been professionally inspected, thoroughly cleaned, carefully refurbished, and is ready for immediate use.

Industry Nine Hydra 2 Classic Rear Hub - 12 x 157mm 6-Bolt Micro Spline BLK 28H

On rugged trails and powerful e-bikes, you need a hub that responds instantly and lasts. The Hydra 2 re-engineered design features a 65% thicker axle, larger 6903 bearings with labyrinth seals, and enlarged pawl pockets for bombproof durability. Its 870 P.O.E. freehub body engages every 0.41 degrees, delivering precise, predictable power transfer when you need it most.

Who is this for?

Riders who push the limits on technical descents, steep climbs, and aggressive trail riding with a modern e-bike setup. If you demand reliable engagement, long service life, and the confidence that your hub won’t let you down under hard power, this Industry Nine hub is built for you.

Each item is professionally packed and shipped next day. Select in-store pick-up at checkout and visit us if you are local!