Abstract: Improved methods and apparatus are disclosed for correcting one or more uniformity characteristics in a tire and particularly to correction in a low profile tire or a tire having a projection along the sidewall. The uniformity characteristic may be a radial force variation, conicity, or both. Correction is accomplished by stretching portions of the tire architecture to create permanent deformation.

Abstract: Improved methods and apparatus are disclosed for correcting one or more uniformity characteristics in a tire and particularly to correction in a low profile tire or a tire having a projection along the sidewall. The uniformity characteristic may be a radial force variation, conicity, or both. Correction is accomplished by stretching portions of the tire architecture to create permanent deformation.

Abstract: An effort transmitted between a vehicle wheel and a wheel support is determined by mounting a tire/wheel assembly for rotation on a wheel support having a dynamic hub rigidly connected on a fixed frame such that the only degree of freedom of the assembly is rotation about the hub axis. The tire is pressed against an excitation device and the resulting fixed support effort transmitted between the wheel and the wheel support is measured. On the basis of the measured fixed support effort, there is calculated a suspended support effort which would be transmitted between the wheel and a wheel support having a degree of freedom of suspension in at least one direction (X, Y, Z) in relation to the excitation device.

Abstract: A method for determining effort transmitted between the wheel of a vehicle and a wheel support, comprising the following steps: the wheel (36) is pivotably mounted in a wheel support (27), said wheel being provided with a tyre; the tyre is pressed against means of excitation (29); a fixed support effort (F<SP>SF</SP>) which is transmitted between the wheel and the wheel support when the tyre is excited with the means of excitation is measured, wherein the wheel support (27) is fixed in at least one direction in relation to the means of excitation. The invention is characterised by a step consisting in calculating (37) a suspended effort (F<SP>SS</SP>), which is transmitted between the wheel and the wheel support (30), having a degree of freedom of suspension in at least one direction in relation to the means of excitation.