What Makes the ZN40 41/52mm Kit the Smart Headset Fix?

The Cane Creek ZN40 Series 41/52mm Bearing Kit packages both headset bearings in one order, covering the complete upper and lower replacement for integrated headsets using a 36x45 contact angle. These zinc-coated cartridge bearings feature hardened steel balls and precision-machined races designed to resist corrosion and deliver smooth steering performance through demanding mileage and wet-weather conditions. Replacing both bearings at once as a matched pair eliminates wear imbalance and returns your headset to full factory performance in a single service.

The 41mm upper and 52mm lower configuration targets specific integrated headset designs within the Cane Creek 110-, 40-, and 10-Series headset lineup, making it an accurate, purpose-built replacement rather than a generic part. If your headset has logged serious mileage and both bearings are due, this kit is the efficient, cost-effective answer compared to sourcing each piece individually. For riders who do their own wrenching and want the job done right the first time, this is the kit to grab.