265/70 R18 Bridgestone R227 variants
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Bridgestone R227 is a tyre made in total of 9 sizes, ranging from R18 to R18 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 265/70 R18 is 60mm wider than the narrowest dimension (205) and 20mm narrower than the widest one (285). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (265mm), which results in 185.5mm sidewall height. In 265/70 R18, there is only one possible speed index for Bridgestone R227 - "", which is good for speeds up to km/h.
265/70 R18 138
Bridgestone R227 is made in 9 sizes, starting from 205/75 R18 up to 285/70 R20.