Cane Creek 40-Series Crown Race — 52/30mm Steel (Straight 1-1/8" Steerer)

This is a replacement Cane Creek steel crown race designed for forks with a 30mm crown race seat and headsets that use a 52mm lower bearing. It’s commonly used on straight 1-1/8" steerer forks found on many MTB, hybrid, commuter, and older road frames.

If your original crown race is damaged, corroded, or missing, this restores correct bearing alignment and smooth steering.

Key Functional Details

• Steel crown race for Cane Creek headsets
• 52mm lower bearing interface
• 30mm fork crown race seat diameter
• 40-Series hardened steel construction for long service life
• Interchangeable across Cane Creek 40, 110, 10, and legacy S/XX series when dimensions match
• Precision engineered by Cane Creek

Compatibility & Technical Notes

• Fork crown race seat diameter must be exactly 30mm
• Lower headset bearing must be 52mm
• Designed for straight 1-1/8" steerers (not tapered)
• Not compatible with 40mm crown seats (those are tapered forks)
• Not compatible with 41mm / 42mm lower bearings
• 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 the lower bearing. Replace anytime the race shows corrosion, pitting, or uneven wear.

Fit & Use Signals

• Good Fit: Straight 1-1/8" steerer forks with 30mm crown seats using 52mm Cane Creek lower bearings.
• Not A Fit: Tapered steerers, 40mm crown seats, 41/42mm lower bearings, or non-Cane Creek headset systems.