The job
A facing system with axle adapters and cutters for the stated IS, post and flat-mount interfaces.
Park Tool · Brake-mount facing set
Park Tool DT-5.2 Disc Brake Mount Facing Set
A facing system with axle adapters and cutters for the stated IS, post and flat-mount interfaces.
$488.98Nov 7, 26, 12:59 AM · New York
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- Operation Disc-brake mount facing
- Named mount interfaces IS; post; flat mount
- Axle setup Four telescoping adapters
Operation
Disc-brake mount facing
Identify the actual operation
Facing a mount is not the same job as rotor truing or pad-gap positioning.
What this choice changes
Machine the supported mounting surface, not the rotor
The DT-5.2 faces the bicycle’s brake-mount surfaces. This is a machining operation at the mount, different from measuring rotor deviation, bending a rotor or setting pad clearance. Choose it only after establishing that the actual frame or fork service requirements call for that operation.
Park Tool names front/rear IS, post and flat mounts, including low-clearance chainstay locations. The set includes four telescoping axle adapters, two facing cutters and a storage case. Match the actual mount and axle setup; broad interface coverage is not approval to machine every frame material or construction.
The maker recommends the separately sold 2197 diamond abrasive adapter for carbon-fiber brake mounts. That recommendation does not mean the adapter is supplied or that every carbon frame may be faced. DT-5UK is an upgrade for an older tool, not an extra included kit. Compare the exact stock contents and any required optional tooling before ordering.
Specifications & supplied details
| Detail | Specification |
|---|---|
| Operation | Disc-brake mount facing |
| Named mount interfaces | IS; post; flat mount |
| Axle setup | Four telescoping adapters |
| Cutters | Two facing cutters |
| Storage | Case included |
| Separate carbon-related accessory | 2197 diamond abrasive adapter |
Choose for your actual setup
Identify the actual operation
Facing a mount is not the same job as rotor truing or pad-gap positioning.
Check stock and optional tooling
Determine the exact adapter/cutter requirement and frame-maker service approval before choosing the kit.
Fit checks & limits
- No universal material-machining authorization.
- 2197 abrasive adapter and older-tool upgrade kit are not included by implication.
Questions before you choose
Does it straighten a brake rotor?
No. It faces the mounting surface. Rotor adjustment uses a different tool and procedure.
Is the diamond adapter supplied?
No. Park Tool lists/recommends 2197 separately for the stated carbon-mount context.
Does flat-mount compatibility permit machining any carbon frame?
No. The interface statement does not replace the exact frame/fork maker’s service approval and tooling requirement.
Guides for this choice
Selected listing details, manufacturer information and source images were compared. No hands-on trial or universal fit is claimed. Product identifier: B014LC7546.