Industry Nine Hydra 2 Classic Rear Hub
Best high performance hub for technical mountain bikers seeking instant engagement.
This hub delivers near-telepathic control with an incredibly high engagement rate. Built to withstand the demands of aggressive riding and modern e-bikes, it prioritizes durability through a reinforced axle and advanced sealing, ensuring reliable performance in the toughest conditions.
$470.00
at
Airpark Bike Co
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$460.00
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Who it's for
- Technical mountain bikers navigating tricky, low-speed uphill sections
- Home mechanics who prefer maintaining their own high-end equipment
- Riders wanting to personalize their bike with premium aesthetic details
Who should skip it
- Cyclists who prefer a silent or stealthy riding experience
- Budget-conscious builders looking for the best value-to-performance ratio
- Efficiency-obsessed racers prioritizing absolute minimum rolling resistance
Performance breakdown
Engagement Speed
Near-instant power transfer makes technical climbing feel effortless and precise.
Durability
Reinforced axle design handles aggressive riding and high-torque e-bike loads easily.
Weather Sealing
Radial lip seals effectively lock out mud and grit in wet conditions.
Weight Efficiency
Lightweight aluminum construction balances strength without adding unnecessary rotational mass.
Maintenance Ease
Straightforward design allows for quick bearing service and pawl maintenance.
Power Transfer
High engagement points ensure immediate acceleration with zero perceptible lag.
Key Specs
Weight
292 grams
Spoke Count
32
Freehub Body Type
Shimano Micro Spline
Bearing Type
Sealed Cartridge
Material
Aluminum
Intended Use
Trail, Enduro, Downhill, E-bike
Engagement Points
870
Boost Compatible
Yes
Hub Type
Rear
Brake Compatibility
Disc
Know before you buy
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