Industry Nine Hydra 2 Classic Rear Hub - 12 x 157mm 6-Bolt XD Black 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 XD Black 28H

Durability and precision meet on the Hydra 2, built for trail, enduro, and downhill riding with full-power ebikes. With a 0.41-degree engagement, you get instant response when you crack the throttle or lean into a berm, while a 65% thicker axle and larger 6903 bearings protected by labyrinth seals shrug off grit and mud. The design also features enlarged pawl pockets for reliable engagement and reduced drag, so you ride with confidence on demanding terrain and long climbs.

Designed specifically for riders who demand control, reliability, and efficiency on rugged trails and power-assisted bikes, the Hydra 2 offers stronger hubshells, improved stress distribution, and proven Industry Nine durability to keep you rolling mile after mile.

Who is this for?

Riders who push the limits on aggressive trails, enduro sessions, and downhill runs, including those with powerful e-bikes, will appreciate the Hydra 2’s reinforced axle, enhanced sealing, and durable bearings. If you crave crisp, immediate engagement, reduced drag on long rides, and a hub built to resist wear under high torque, this rear hub is 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!