Based in North Carolina, USA, Industry Nine have carved a name for themselves as a go-to brand for high performance mountain bike hubs and wheelsets. The Hydra2 is the latest evolution of their bomb-proof hubset, featuring the sought after combination of rapid engagement, high quality components, easily serviceable and stunning looks. The Hydra2 is made for demanding riding styles and is therefore ready to handle aggressive Trail, Enduro, Freeride, DH and E-bike applications.

Sound is often an important aspect when choosing a hubset, the Hydra2 sits nicely in the 'mid' range when compared to other popular hubsets. Nice, but not obnoxious.

The Hydra2 hubset comes with a boost 15x110mm front hub size and is available with either boost (12x148mm) or super boost (12x157mm) as your rear hub size option. You also have your choice of Shimano HG, Shimano MicroSpline and Sram XD driver options and 12 awesome colours.

Custom builds - The customization options with Industry Nine are unrivalled with your choice of hub and spoke colour, you really can cook up something unique. Contact us at support@biketart.com if you want to discuss a custom wheel build around a set of Industry Nine Hydra2 hubs.

FEATURES - 

• 32 spoke hole
• 6 bolt rotor attachment
• 6 Pawl Freehub
• 145t Drive Ring
• eBike ready
• 870 P.O.E (Points of Engagement)
• 0.41° Engagement
• 60% less coasting drag than the OG Hydra
• 65% thicker axle. Redesigned to dissipate stress more effectively.
• Large 6903 bearings throughout, and a new labyrinth channel and full-contact radial lip seal to protect from the elements
• A new design to ensure consistent bearing preload, regardless of variations in axle tightness.
• Large 5.5mm pawl pockets
• Tougher drive ring metal and an extra tooth on each pawl, guaranteeing Hydra2 can easily handle the torque of the most powerful ebike motors.

All Industry Nine aluminium products are covered by a 2 year warranty.

Key improvements over the original Hydra Hub - 

As the 'tough guy' in the Industry Nine hub line-up the Hydra2 has been further developed to handle highest of demands from mountain bikers.

• A 65% thicker axle that’s been redesigned to dissipate stress more effectively.
• Larger 6903 bearings throughout, and a new labyrinth channel and full-contact
• A new, fool-proof design to ensure consistent bearing preload, regardless of variations in axle tightness.
• Larger, 5.5mm pawl pockets that dissipate force 26% better, preventing stretching and elongation of the pockets over years of use.
• Tougher metal for the drive-ring and an extra tooth on each pawl, guaranteeing Hydra2 can easily handle the torque of the most powerful e-bike motors
  
• Radial lip seal to keep out elements that cause premature bearing wear.
  

'The folks in Asheville have done their homework, improving the Hydra platform on all fronts for the second edition. Increased engagement is a convenient upside of improved durability, and the reduced drag simply adds to the list of upgrades' - Pinkbike review 2025