DISC BRAKE MOUNT FACING SET PARK TOOL DT-5.2

The Park Tool DT-5.2 is the precision set for facing disc brake mounts, designed to align the caliper mounting surfaces with the rotor. This disc brake mount facing set works on IS, post and flat mounts, including low-clearance flat mounts on the chainstay.

The system locates on the wheel axle thanks to four telescoping axle adapters, which work with open or thru-axle dropouts of any width, including Boost 110, Boost 148 and fat bike axles. Two dedicated cutters cover the different mount types, and the whole set is stored in a case. By referencing the work to the wheel axle, the faced surfaces end up aligned with the rotor: the basis for fitting the caliper correctly, avoiding pad rub and getting consistent braking.

Where to use the Park Tool DT-5.2 facing set

• Preparing IS disc brake mounts.
• Facing post mounts.
• Facing flat mounts, including low-clearance chainstay mounts.
• Working with open dropouts and thru-axles of any width.
• Compatibility with Boost 110, Boost 148 and fat bike axles.

Why choose Park Tool DT-5.2

• One system for IS, post and flat mounts.
• Four telescoping axle adapters for open or thru-axle dropouts.
• Two precision cutters for the different mount surfaces.
• Storage case to keep and carry the set.
• For carbon fibre mounts Park Tool recommends the 2197 diamond abrasive adapter: high performance materials such as carbon fibre and titanium can dull frame prep tools much faster than steel or aluminium.

For workshops that prepare frames, fit disc brakes or solve caliper alignment problems, the Park Tool DT-5.2 disc brake mount facing set is professional-grade equipment. Owners of the earlier DT-5 can bring it up to DT-5.2 features with the DT-5UK upgrade kit. Kept tidy in its case, the set stays protected between jobs and is ready whenever a frame needs preparing.