PROGRESS Mountain rear hub NITRO2 DISC BOOST 12X148 MICROSPLINE 28 PGRUNI2MBTMS28

Rear hub for mountain bike with disc brakes, made of machined 7075 aluminum. 100% parallel COAX ceramic bearings with PAL-TECH technology.
In 2025 we launched the new Nitro II hubs, equipped with cutting-edge technology backed by more than 40 years of experience.
They are designed with what really matters in mind, offering a significant advantage in performance and use.
For wheels with a more balanced, stiffer, and more durable spoke tension.
Characteristic:
Radiated 2:1 | 16:8 We equalize the tension of left and right spokes.
Larger diameter on the right wing, we gain +2º more angle in the spokes to achieve greater lateral rigidity and better power transmission.
48 teeth with 4 powerful double-engagement pawls, guaranteeing minimal friction and maximum power transmission.
Large diameter 28mm Ceramic Coaxial Bearings.
PAL-TECH technology, 100% aligned bearing seat.
More powerful bearings in the core with a width of 7mm.
Available hubs: Shimano HG / Sram XD / Shimano Micro Spline.
IS6 disc mount
Axle: 12x148mm.
Spoke holes: 28H.
Weight: 235 grams.