Bridgestone Potenza S001 is a summer tyre made in total of 151 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/45 R18 is 40mm wider than the narrowest dimension (205) 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, there is only one possible speed index for Bridgestone Potenza S001 - "Y", which is good for speeds up to 300 km/h. In 245/45 R18, Potenza S001 usually competes against Cinturato P7, which is a tyre from Pirelli with a rating of 75%, compared to 0% of the Bridgestone in question. Latest test in 245/45 R18 was held by Autobild in 2020, where Potenza S001 received rating "Good" and finished on the 11. place. It was tested on a BMW 5 series.