Continental SportContact 7 255/40 R21

Continental SportContact 7 is a summer tyre made in total of 124 sizes, ranging from R18 to R18 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 255/40 R21 is 30mm wider than the narrowest dimension (225) and 90mm narrower than the widest one (345). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (255mm), which results in 102mm sidewall height. In 255/40 R21, SportContact 7 usually competes against Ventus Evo, which is a tyre from Hankook with a rating of 99%, compared to 100% of the Continental in question.