DT Swiss 180 EXP Rear Hub - 12 x 142mm Center-Lock HG 11 Road BLK 28H Straight Pull 36ptDT Swiss 180 EXP Rear Hub 12 x 142mm Center Lock HG 11 Road Black 28H Straight Pull 36pt. Lighter stiffer more precise and easier to maintain the strengths of the 180 hub are further enhanced with the new Ratchet EXP technology. The ultra reliable freehub system transfers the highest pedaling loads resulting in direct power transmission. Smooth running SINC Ceramic bearings bring the decisive advantage with their extremely low rolling resistance. TECH