Industry Nine Hydra 2 Classic Rear Hub - 12 x 148mm 6-Bolt Micro Spline Purple 28H

We’re a mission-driven bike shop based in Colorado. Every sale helps refurbish and donate bikes to those in need through Bicycles for Humanity Colorado. Each item has been professionally inspected, thoroughly cleaned, carefully refurbished, and is ready for immediate use.

Industry Nine Hydra 2 Classic Rear Hub - 12 x 148mm 6-Bolt Micro Spline Purple 28H

On demanding descents and long rides, reliability is non-negotiable. The Hydra 2 combines a 65% thicker axle, larger 6903 bearings, and full-contact seals to keep grit out and power in, while the 0.41-degree engagement delivers instant, confident response when you need it most.

Who is this for?

Riders who push trail, enduro, or downhill terrain—and power-ebike enthusiasts—seeking bombproof durability, precise engagement, and long-term performance in all conditions.

specifications	details
Rear Axle	12mm Thru x 148mm
Cassette Body Type	Shimano Micro Spline
Color	Purple
Skewer Included	No
Bearing Type	Sealed Cartridge
Weight	292
Designed for ebike	Yes
Defined Color	Purple
Spoke Interface	J-Bend
Hub Drilling	28
Hub/Brake Compatibility	6-Bolt Disc

Each item is professionally packed and shipped next day. Select in-store pick-up at checkout and visit us if you are local!

Rear Axle	12mm Thru x 148mm
Cassette Body Type	Shimano Micro Spline
Color	Purple
Skewer Included	No
Bearing Type	Sealed Cartridge
Weight	292
Designed for ebike	Yes
Defined Color	Purple
Spoke Interface	J-Bend
Hub Drilling	28
Hub/Brake Compatibility	6-Bolt Disc