Cane Creek 40-Series Crown Race — 52/40mm Steel (Tapered 1.5" Fork Crown)

This is a replacement Cane Creek steel crown race designed for forks with a 40mm crown race seat and headsets that use a 52mm lower bearing. This version is typically used on tapered steerer forks with a 1.5" lower interface.

If your lower crown race is damaged, corroded, or missing, this restores proper bearing alignment and smooth steering performance.

Key Functional Details

• Steel crown race for Cane Creek headsets
• 52mm lower bearing interface
• 40mm fork crown race seat diameter
• Compatible across Cane Creek 40, 110, 10, and legacy S/XX series when dimensions match
• Steel construction for durability
• Precision engineered by Cane Creek

Compatibility & Technical Notes

• Fork crown race seat diameter must be exactly 40mm
• Lower headset bearing must be 52mm
• Common on tapered steerers with 1.5" lower fork crowns
• Not compatible with straight 1-1/8" steerers (those use 30mm crown races)
• Intended for Cane Creek headsets — compatibility with other brands is not guaranteed
• Requires proper crown race installation tool for correct seating

Service / Ownership Context

This crown race must be pressed squarely onto the fork crown using a crown race setting tool. Improper installation can deform the race or damage headset bearings. Replace anytime the race shows corrosion, pitting, or deformation.

Fit & Use Signals

• Good Fit: Tapered steerer forks with 40mm crown seats using 52mm Cane Creek lower bearings.
• Not A Fit: Straight 1-1/8" steerers (30mm crown seats), 39.8mm seats, or non-Cane Creek headset systems.