This is a great tool for removing the piston wrist pin of just about any engine, and as far as BMW motorcycles are concerned, especially useful on all pre 1981 models with an internal circlip. Without a tool like this, if can be difficult to remove the wristpins without the potential for damage. It is never a good idea to tap the wrist pin out.
The tool is supplied with 5 bushings with the following diameters: 13.0, 15.0, 16.0, 19.0, and 22.0 mm