Tyres in size 285/40 R20 are designed for sports cars with high engine power. The first number denotes the tyre's tread width in millimetres. The next number informs about the tyre's profile height (40% out of 285 mm). The "R" in the last but one position in size 285/40 R20 means the tyre uses the radial construction The last number denotes the diameter of the wheel's rim on which 285/40 R20 tyres can be installed. Are you searching for the tyres in size 285/40 R20? With us you will find a perfect equipment for your car.