Machine for treating a tired wheel comprising - at least one base , - at least one column projecting upward from said at least one base , - at least one tool-holder arm supported by said at least one column , - at least one work tool supported by or articulated to said at least one tool-holder arm , - supporting and constraining means supported by said at least one base for the support and constraining of a rim (W) of or for a tired wheel (TW), said supporting and constraining means being set to support a rim (W) or a tired wheel (TW) with rotation and symmetry axis that is vertical, horizontal or tilted with respect to the vertical, - at least one electronic control unit , - means for detecting the radius or the diameter of a rim (W) or of data or information correlated or correlatable by said at least one electronic control unit with the radius or with the diameter of a rim (W) on the supporting and constraining means and/or means for introducing or communicating the radius or the diameter of a rim (W) on the supporting and constraining means in the at least/to the at least one electronic control unit , - motor means (M) for actuating or driving in rotation the supporting and constraining means and/or motor means set to drag into rotation the tools around said supporting and constraining means , such that said supporting and constraining means can revolve or rotate around a rotation axis and/or said at least one work tool can revolve or rotate around said supporting and constraining means , said at least one electronic control unit being set to control said motor means (M) so as to vary or set the speed of rotation or displacement of said supporting and constraining means and/or of said at least one work tool around said supporting and constraining means as a function of the radius or diameter of said rim (W) communicated thereto or calculated thereby. - at least one base , - at least one column projecting upward from said at least one base , - at least one tool-holder arm supported by said at least one column , - at least one work tool supported by or articulated to said at least one tool-holder arm , - supporting and constraining means supported by said at least one base for the support and constraining of a rim (W) of or for a tired wheel (TW), said supporting and constraining means being set to support a rim (W) or a tired wheel (TW) with rotation and symmetry axis that is vertical, horizontal or tilted with respect to the vertical, - at least one electronic control unit , - means for detecting the radius or the diameter of a rim (W) or of data or information correlated or correlatable by said at least one electronic control unit with the radius or with the diameter of a rim (W) on the supporting and constraining means and/or means for introducing or communicating the radius or the diameter of a rim (W) on the supporting and constraining means in the at least/to the at least one electronic control unit , - motor means (M) for actuating or driving in rotation the supporting and constraining means and/or motor means set to drag into rotation the tools around said supporting and constraining means , such that said supporting and constraining means can revolve or rotate around a rotation axis and/or said at least one work tool can revolve or rotate around said supporting and constraining means , <EOS>