The size 325/25 R20 is reserved for the tyres designed for sports vehicles. The first number (325) is a tyre's tread width expressed in millimetres. The next number is a designation of the tyre's profile height in percentage (it amounts 25% out of 325 millimetres of the tyre's tread width). The "R" in the tyre's size means that the tyre is built in a radial construction. The last parameter in the tyre's size is the diameter of the wheel's rim (in inches) on which the tyre can be installed. With us you will make the best purchase of the tyres in size 325/25 R20.