Radius arm tracking shim. only to be fited in a workshop with specialist measuring equipment where frequent changes are required.
These shims alter tracking as follows:
10" wheel rim diameter - adds approx. 0.028"/0.7mm toe-out to the reading.
12" wheel rim diameter - adds approx. 0.32"/0.81mm toe-out to the reading.
13" wheel rim diameter - adds approx. 0.038"/0.97mm toe-out to the reading.
