Bridgestone Turanza ER300 is a summer tyre made in total of 59 sizes, ranging from R14 to R14 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/45 R18 is 40mm wider than the narrowest dimension (185) and 50mm narrower than the widest one (275). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (225mm), which results in 101.25mm sidewall height. In
225/45 R18, Turanza ER300 usually competes against
P ZERO PZ4, which is a tyre from
Pirelli with a rating of 86%, compared to 0% of the
Bridgestone in question.