Continental SportContact 5 is a summer tyre made in total of 121 sizes, ranging from R17 to R17 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 255/50 R21 is 60mm wider than the narrowest dimension (195) and 30mm narrower than the widest one (285). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (255mm), which results in 127.5mm sidewall height. In
255/50 R21, SportContact 5 usually competes against
UltraGrip Performance+, which is a tyre from
GoodYear with a rating of 90%, compared to 0% of the
Continental in question.
