Tyres in size 255/45 R20 are characteristic for passenger cars of a sports character. 255 is a tyre's tread width expressed in millimetres. Number 45 is a designation of the tyre's profile height and it is calculated in the following way: the profile height amounts 45% out of 255 millimetres of the tyre's tread width. The capital "R" in the size label means that the tyre has been produced in accordance with the radial technology. The last number present in the size describes exactly the diameter of the wheel's rim (in inches) which can be installed with the tyre in size 255/45 R20. Here you will find many offers of the tyres in size 255/45 R20.