An apparatus for and a method of fitting or removing a motor vehicle tyre (4) comprising a rotatably supported wheel receiving device (2) to which the rim (3) is to be fixed, at least one fitting or removal tool (5), a rotary drive device (10) for the wheel receiving device and a sensing device (6),...http://www.google.ca/patents/US7715024?utm_source=gb-gplus-sharePatent US7715024 - Method of and apparatus for determining geometrical dimensions of a wheel rim, in particular when fitting and/or removing a motor vehicle tyre