Cane Creek ZN40 Headset Bearing - 41.8mm | 45 x 45

Cane Creek ZN40 Headset Bearing - 52mm | 45 x 45 Cane Creek
Cane Creek ZN40 Headset Bearing - 52mm | 45 x 45 Cane Creek
Cane Creek ZN40 Headset Bearing - 52mm | 45 x 45 Cane Creek
Cane Creek ZN40 Headset Bearing - 52mm | 45 x 45 Cane Creek

Cane Creek ZN40 Headset Bearing - 41.8mm | 45 x 45

Cane Creek ZN40 Headset Bearing - 41.8mm | 45 x 45

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Why Do Cyclists Trust the ZN40 41.8mm 45x45 Bearing?

The Cane Creek ZN40 41.8mm Headset Bearing is a precision replacement for headsets with a 45x45-degree contact angle that require this specific upper-cup sizing. The zinc-coated cartridge design guards against corrosion from road spray and wet-weather riding, while hardened steel balls deliver consistent, smooth steering rotation mile after mile. Getting this bearing right matters because even minor play or roughness at the headset translates directly into vague, imprecise handling on the bike.

The 41.8mm diameter is a common upper bearing size in external and semi-integrated headsets, and this ZN40 is cross-compatible with Cane Creek 110-, 40-, and 10-Series headsets that call for it. If your headset feels loose, creaky, or rough despite proper preload and torque, the bearing is likely the culprit, and this is the correct replacement. Stocking this part means you are never sidelined waiting on a maintenance item that should be a 15-minute fix.

$12.99
$12.99
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1 in stock

  • Orders over $100 ship free!
  • Estimated delivery: Aug 08 - Aug 12

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Specifications

  • Diameter: 41.8mm
  • Contact Angle: 45 x 45
  • Finish: Zinc coated
  • Type: Cartridge bearing, single
  • Ball Material: Hardened steel
  • Compatibility: Cane Creek 110-, 40-, and 10-Series headsets

FAQ

Why is 41.8mm a common upper headset bearing size?

The 41.8mm outer diameter corresponds to the EC44 standard used by many external cup headsets. It is one of the most widely used upper bearing sizes in road and gravel headset design.

Does the contact angle need to match my existing bearing exactly?

Yes. The contact angle of the bearing must match the cup and crown race geometry of your headset. Using a 36x45 bearing in a 45x45 headset, for example, will result in incorrect load distribution and premature failure.

How do I install a headset cartridge bearing correctly?

Press or seat the bearing squarely into the cup without cocking it to one side. Do not strike the inner race when pressing. Use a proper headset press or bearing press tool, and confirm the bearing seats flush before tightening the stem.

Best For

Road and gravel cyclists with Cane Creek 110, 40, or 10-Series headsets that use a 41.8mm 45x45 upper bearing. Particularly useful for riders experiencing rough or notchy steering who want to restore factory-fresh handling with an OEM-quality component.

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