The tyres in size 275/45 R18 are designed for sports passenger cars. The number in the first position describes the exact tyre's tread width in millimetres. The next number is reserved for a designation of the tyre's profile height which amounts here 45% out of 275 millimetres of the tyre's tread width. The "R" informs that the tyre uses the radial construction. The number in the last position is the diameter of the wheel's rim in inches which can be installed with the tyre in size 275/45 R18. Feel free to check our rich offer of tyres in size 275/45 R18.