Lighter, stiffer, more precise and easier to maintain - the strengths of the 180 hub are further enhanced by the new RATCHET EXP technology. The highly reliable freehub system transmits maximum pedal forces and thus enables direct power transmission. Smooth-running SINC ceramic bearings provide the decisive advantage with their extremely low rolling resistance. DT Swiss 180 hub - the ultimate in lightness, stiffness and durability.