BOX Components Three Headset 11/8 Threadless. Threadless headsets features a hybrid aluminum and steel construction. CNC machined alloy top cap, upper bearing cover, and lower race Steel cups. Fitted with smooth rolling cartridge bearings. For frames that accommodate external cup style headsets. Also for forks that have straight 1 1/8" steerer tubes.
SPECIFICATIONS COLOR Black MODEL Three STEERER DIAMETER 1-1/8''