Industry Nine Hydra System Wheels

The Hydra hub is defined by its 690 points of engagement, which translates to a 0.52-degree engagement angle. This provides near-instant power transfer when you pedal, making it significantly easier to navigate technical climbs or ratchet through rocky sections where a full pedal stroke isn't possible.

Because these wheels are built to order, you select the specific rim, spoke color, and hub configuration that best suits your riding style. This allows you to prioritize specific traits like weight savings for cross-country racing or increased stiffness and impact resistance for aggressive enduro riding.

Yes, Industry Nine offers these wheels in 29-inch, 27.5-inch, or mixed configurations. This flexibility allows you to tailor your wheel size to your frame's geometry and your personal preference for rollover capability versus maneuverability.

The Hydra hubs are designed to be user-serviceable without proprietary tools for basic maintenance. You can easily access the bearings and pawl system for cleaning and lubrication, which helps keep the high-engagement mechanism running smoothly over time.

A 32-spoke count is widely considered the sweet spot for mountain biking, offering a reliable balance between lateral stiffness and vertical compliance. It provides enough strength to handle aggressive trail riding while remaining forgiving enough to track well through rough, uneven terrain.

These specific wheels are built with 6-bolt brake rotor compatibility. If you are currently running Centerlock rotors, you will need to switch to 6-bolt rotors or use a Centerlock-to-6-bolt adapter to make them work with your existing braking system.