This tyre's size is designed for off-road and 4x4 cars. The first number is tyre's tread width and it is expressed in millimetres. The next number 45 is tyre's profile height in percentage (45% of 305 millimetres). On the last but one place there is a big letter "R" which means the tyre has been produced according to the radial construction. The last position is taken by the number which denotes diameter of the wheel's on which the tyre can be installed. Check out our rich offer and choose among many tyres in size 305/45 R22.