Goodyear Efficient Grip Performance 2 255/50 R21

Goodyear Efficient Grip Performance 2 is a summer tyre made in total of 88 sizes, ranging from R15 to R15 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 255/50 R21 is 70mm wider than the narrowest dimension (185) and 0mm narrower than the widest one (255). 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.