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235/40 R18 Semperit Speed-Grip 3 variants
Semperit Speed-Grip 3 is a winter tyre made in total of 49 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/40 R18 is 50mm wider than the narrowest dimension (185) and -40mm narrower than the widest one (195). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (235mm), which results in 94mm sidewall height. In 235/40 R18, there is only one possible speed index for Semperit Speed-Grip 3 - "V", which is good for speeds up to 240 km/h.
Semperit Speed-Grip 3 is made in 49 sizes, starting from 185/55 R15 up to 195/55 R20.
