Peter and Kerstin offer an elegant solution to measure (and then correct) the runout of a disk brake rotor. The disk brake accessory is a lovely clamp to one truing stand leg, that holds a green anodized analog dial gauge.
Brake rotors can become bent in use and travel so this device will be a regular asset in your business. Now you can remedy bent rotors easily. When the gauge is not needed, it can be swung neatly out of the way.
Please notice that pre-2019 stands have a different column diameter and use the original disk brake tool. 2019 and on stands use the earlier.