Industry Nine Hydra 2 Classic Rear Hub - 12 x 148mm 6-Bolt Micro Spline Bronze 32H

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 148mm 6-Bolt Micro Spline Bronze 32H

Engineered for trail, enduro, and downhill riding, this rear hub delivers unwavering durability and precise power delivery when the terrain gets brutal. The Hydra 2 features a newly designed 65% thicker axle, larger 6903 bearings, and labyrinth seals, ensuring reliable performance under long, punishing rides and high‑power e-bike use. With an 870 P.O.E. Hydra 2 freehub body that engages every 0.41 degrees, you’ll experience telepathic control and immediate response when you need it most.

Designed specifically to handle full-power e-bikes and aggressive riding styles, it combines scalloped flanges for strength with a lighter shell, improved oil retention, and robust sealing to keep grit out and lubrication in for years of dependable service.

Who is this for?

Riders who demand trail-ready reliability, quick and predictable engagement, and the stamina to tackle steep climbs and rapid descents on demanding terrain. If you crave a hub that stays consistent under power, reduces drag, and stands up to the rigors of modern e-bikes, this Industry Nine Hydra 2 rear hub is built for your ride.

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