The job
A handle with two cutters and two bushings; the maker marks this model discontinued.
Park Tool · Crown-race-seat cutter
Park Tool CRC-1 Crown Race Seat Cutter
A handle with two cutters and two bushings; the maker marks this model discontinued.
$645.19Nov 7, 26, 01:00 AM · New York
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- Operation Crown-race seat machining
- Cutter 845 26.5/27.1 mm seats on 1 in columns
- Cutter 846 30.1 mm seats on 1-1/8 in columns
Operation
Crown-race seat machining
Identify machining versus setting
A cutter changes the seat surface. A setting drift performs the separate race-installation job.
What this choice changes
Machine the seat rather than install the race
The CRC-1 machines the crown-race seat surfaces on the supported fork-column interfaces. This is a metal-cutting preparation step, different from installing the race with CRS-1 or pulling an old race with CRP-2. Choose it only when the actual fork’s service requirements authorize the machining operation.
Cutter 845 serves 26.5 and 27.1 mm seats on 1-inch columns, while 846 serves 30.1 mm seats on 1-1/8-inch columns. Bushings 843 and 844 correspond to those column systems. These are two cutters with different working contacts, not three separate cutters inferred from three seat dimensions.
Park Tool’s exact page marks CRC-1 discontinued. That does not establish Amazon stock, but replacement/service support is worth confirming before buying a specialist machining tool. The manufacturer requires suitable cutting fluid, which is not established as supplied. No universal permission to machine carbon, alloy or every fork follows from the adjustable handle.
Specifications & supplied details
| Detail | Specification |
|---|---|
| Model status | Manufacturer marks CRC-1 discontinued |
| Operation | Crown-race seat machining |
| Cutter 845 | 26.5/27.1 mm seats on 1 in columns |
| Cutter 846 | 30.1 mm seats on 1-1/8 in columns |
| Bushings | 843/844 for the stated 1/1-1/8 in systems |
| Supplied | Handle, two cutters and two bushings |
| Separate | Required suitable cutting fluid |
Choose for your actual setup
Identify machining versus setting
A cutter changes the seat surface. A setting drift performs the separate race-installation job.
Check future support
Confirm the required replacement cutters/service before selecting a discontinued specialist model.
Fit checks & limits
- No current Amazon stock claim follows from manufacturer discontinuation status.
- No universal fork-material machining approval or cutting fluid included.
Questions before you choose
Does it replace CRS-1?
They serve different operations: CRC-1 machines the seat, while CRS-1 installs a supported crown race.
Which supplied cutter serves the 1-1/8-inch seat?
The maker names cutter 846 for the 30.1 mm seat on the stated 1-1/8-inch system. Confirm the actual seat and approved machining requirement, not just the upper steerer diameter.
Is cutting fluid included?
The maker requires suitable cutting fluid, but none is established as supplied.
Guides for this choice
Other equipment to consider
Selected listing details, manufacturer information and source images were compared. No hands-on trial or universal fit is claimed. Product identifier: B000MLEU2G.