Industry Nine Hydra 2 Boost XD Disc Hub Rear 32H 12mm TA 148mm SRAM XD Turquoise

Redesigned for durability under the most extreme use, with even faster engagement and less drag Thicker axles, larger beargins, larger pawls with an additional tooth, and a tougher drivering guarantee the Hydra 2 can easily handle the torque of powerful ebike motors 0.41 degree engagement Designed and build in Asheville, NC