Industry Nine Hydra Classic
Best high performance hubs for serious mountain bikers.
This rear hub delivers near-instantaneous power transfer thanks to its industry-leading engagement system. It is a lightweight, highly serviceable upgrade designed for riders who demand precision and reliability on the trail.
$470.00
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Who it's for
- Riders demanding immediate power delivery and precise bike control.
- Aggressive riders and those seeking long-term, reliable performance.
- Enthusiasts who appreciate a unique, audible freehub signature.
Who should skip it
- Budget-conscious cyclists or casual riders seeking value.
- Riders who prefer a silent or very quiet freehub.
- DIY mechanics unfamiliar with complex hub designs.
Performance breakdown
Engagement Speed
Near-instantaneous power transfer makes technical climbing and ratcheting effortless.
Build Quality
Precision-machined in Asheville with exceptional attention to material durability.
Maintenance Ease
Tool-free disassembly makes routine cleaning and servicing straightforward for home mechanics.
Weight Efficiency
Impressively light construction minimizes rotational mass without compromising structural integrity.
Compatibility
Standardized boost spacing and axle sizing fits most modern trail bikes.
Auditory Feedback
The signature high-frequency buzz provides distinct, satisfying feedback while coasting.
Key Specs
Weight
286g
Spoke Count
32
Freehub Body Type
Shimano Micro Spline
Engagement Points
690
Boost Compatible
Yes
Hub Type
Rear
Brake Compatibility
Disc
Disc Mount Type
6-bolt
Axle Type
12mm TA
Rear Spacing
148mm
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