Our Headtube Reducers adapt your headtube to accommodate different fork sizes. These reducers are designed for traditional, external cup headsets. See Cane Creek's Standardized Headset Identification System (S.H.I.S.) on the right to verify compatibility with your frame.
PSHD9900 1-1/4 to 1-1/8" 1-1/8" EC37 (for 1-1/4" Traditional) Adds 2mm