The Cane Creek 40 Series Conversion Crown Race 52/30 allows you to run a 1-1/8" straight fork with a 30mm crown race seat in any Cane Creek headset with a 1.5" lower bearing. The Cane Creek 40 Series Conversion Crown Race 52/30 is constructed of durable steel and features a low friction seal that runs light against the face of the lower cup to keep bearings from being contaminated with debris from the the front wheel.
Crown Race Seat Diameter: 30mm
MFG. PART NO. BAA0009S
Steer Tube Diameter: 1.5'' to 1-1/8''