Bridgestone Alenza 001 285/45 R20

Bridgestone Alenza 001 is a summer tyre made in total of 96 sizes, ranging from R13 to R13 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 285/45 R20 is 70mm wider than the narrowest dimension (215) and -10mm narrower than the widest one (275). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (285mm), which results in 128.25mm sidewall height.