Is the ZN40 41mm 36x45 Bearing Right for Your Integrated Headset?

The Cane Creek ZN40 41mm 36x45 Headset Bearing is purpose-built for integrated and internal headset designs that use a 36-degree lower contact angle, a configuration common on modern road and gravel framesets with internal bearing seats. Built with a zinc-coated steel race and hardened steel balls, this bearing delivers corrosion resistance and smooth steering feel through all riding conditions. Getting the contact angle right on an integrated headset is non-negotiable, and the 36x45 geometry matches the cup-to-race interface these headsets require.

At 41mm outer diameter, this ZN40 seats accurately into the lower position of integrated headsets within the Cane Creek 110-, 40-, and 10-Series headset lineup that specify this configuration. Replacing a worn lower bearing in an integrated headset restores the direct, feedback-rich steering feel that disappears when bearings start to show play or roughness. This is the bearing for riders who run modern frame designs and insist on maintaining them to spec.