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. Specs: Color Black Defined Color Black Spoke Interface Straight Pull Bearing Type Sealed Cartridge Hub Drilling 24 Hub/Brake Compatibility Rim Brake Rear Axle QR x 130mm