Crown races are often molded directly into carbon fiber forks. Forks with this feature do not require a separate crown race, the bearing interfaces directly with the fork.
Measure the top of the molded-in bearing seat to determine its diameter, then compare the angle of the bearing seat to a known 45° angle to determine if the bearing seat is 45° or 36°
Ask Cane Creek
Thank you for using Cane Creek Headset Fit Finder. We’re sorry if you were not able to find headset fit information for your specific bicycle, but we’re here to help. Please fill out the form below with as much information as possible and a Cane Creek Headset Specialist will contact you shortly.
Choose Headset Type
Choose ZS for straight steerer tubes and minimum lower stack height. Choose EC for all tapered steerer forks or for additional lower stack height when using straight steerer tubes.
External Cup headsets have bearings that reside outside of the head tube.
Zero Stack headsets are also known as semi-integrated. They are low-stack-height cups pressed into the frame; the bearing is placed inside the cup.
Crown Race Type
Press fit refers to a separate crown race that is inserted onto the fork and hammered into place. Integrated crown races are molded onto the fork crown, and are an integral part of the fork - they do not require a separate piece.
Stem Clamp Outside Diameter (OD)
Where the stem clamps to the fork. This is the smallest diameter on the steerer tube.
Crown Race Seat Outside Diameter (OD)
The crown race seat is slightly larger than the stem clamp area. Measure at the crown for press-fit, and at the top of the chamfer (cone) for integrated.
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