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Park Tool
Crown Race Cutter Adaptor

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Crown Race Cutter Adaptor

In order to maximize the lifespan and performance of your headset, you'll want to cleanly face the crown race seat for a precise, low-tolerance fit. The Park Tool CRC-1 Crown Race Cutting Tool does just that, but it requires an adaptor for 1.5in tapered steerer tubes. This is that adaptor. It includes a precision-machined adaptor body as well as a high-speed steel crown race cutter. Please note that it only works on forks where the tapered area of the steerer tube is a maximum of 4.25-inches in length.


  • Face the crown race seat of your 1.5in tapered fork
  • Designed for the Park Tool CRC-1 Crown Race Cutting Tool
  • Includes the adaptor body and a steel crown race cutter
  • Tapered area of steerer tube must not exceed 4.25-inches
  • Item #PAR0254
CRC-1 Crown Race Cutting Tool, 1-1/8 - 1-1/2in tapered steerer tubes
Recommended Use
bike maintenance
Manufacturer Warranty
limited lifetime