Bridgestone Turanza ER33 255/35 R18

Bridgestone Turanza ER33 is a summer tyre made in total of 11 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 255/35 R18 is 40mm wider than the narrowest dimension (215) and -10mm narrower than the widest one (245). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (255mm), which results in 89.25mm sidewall height.