Industry Nine Hydra 2 Classic Rear Hub
Best high performance hub for aggressive trail and enduro riders.
This rear hub redefines responsiveness with an incredibly fast engagement system that translates every pedal stroke into immediate forward motion. Built with a reinforced architecture and larger bearings, it offers the rugged reliability needed for modern mountain biking and e-bike applications.
$470.00
at
Airpark Bike Co
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$470.00
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$470.00
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$240.00
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$460.00
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Who it's for
- Aggressive riders seeking immediate power delivery and precise control.
- Dedicated cyclists prioritizing longevity and dependable performance on tough trails.
- Enthusiasts who appreciate a premium, recognizable freehub sound.
Who should skip it
- Budget-conscious riders or those not needing top-tier engagement.
- Riders who prefer silent coasting or a more discreet bike.
- DIY mechanics preferring simpler hub designs for maintenance.
Performance breakdown
Engagement Speed
Near-instantaneous power transfer makes technical climbing feel effortless and precise.
Structural Durability
Beefed-up axle and bearings handle aggressive riding and e-bike torque easily.
Weight Efficiency
Impressively light given the robust construction and heavy-duty internal components.
Maintenance Accessibility
Straightforward design allows for quick service without needing proprietary specialized tools.
Build Quality
Precision machining from Asheville sets the gold standard for domestic manufacturing.
System Versatility
Seamlessly bridges the gap between standard trail bikes and high-torque e-MTBs.
Key Specs
Weight
292 grams
Axle Standard
12x148mm
Spoke Count
28
Brake Compatibility
6-bolt
Freehub Body Type
XD
Engagement Angle
0.41 degrees
Material
Aluminum
Intended Use
Mountain Biking, E-bike
Spoke Hole Type
J-bend
Know before you buy
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