INVENTORY UPDATE OCTOBER 2021: ALL I9 hubs have a 20 week lead time and will be ordered as needed. Please do not order hubs if you need them in a shorter time frame.
Industry Nine Hydra Classic ISO Boost disc hubs are designed for off-road punishment in messy environments. Hydra Classic hubs feature large diameter conventional flanges to improve wheel stiffness and allow the use of standard j-bend spokes.
Industry Nine hubs are 100% USA designed and manufactured in Asheville, North Carolina.
Technical Information:
- Weight: 155g ±5%
 - Hole Count: 28, 32
 - Axle: 110x15mm TA Boost
 - Bearings: 2 x 6804
 - Standard non-Boost version available here
 - Centerlock Boost version available here
 - Colors: Available in 11 standard anodized colors
 - Ideal use: MTB ISO disc off-road with Boost spacing
 - Wheel building specifications here
 
Inventory Note: We stock a wide variety of Industry Nine hubs, however our inventory fluctuates daily. We may need to order hubs with an average lead time of 5-10 business days. Some hubs may take longer. If your order is time sensitive we encourage you to contact us for up to the minute product availability and shipping lead times.