Bridgestone Potenza RE050A is a summer tyre made in total of 99 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/45 R18 is 70mm wider than the narrowest dimension (175) and 60mm narrower than the widest one (305). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (245mm), which results in 110.25mm sidewall height. In
245/45 R18, Potenza RE050A usually competes against
UltraGrip Performance+, which is a tyre from
GoodYear with a rating of 90%, compared to 0% of the
Bridgestone in question.
