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255/45 R20 Semperit Speed-Life 3 variants
Semperit Speed-Life 3 is a summer tyre made in total of 113 sizes, ranging from R15 to R15 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/45 R20 is 90mm wider than the narrowest dimension (165) and 40mm narrower than the widest one (295). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (255mm), which results in 114.75mm sidewall height. In 255/45 R20, there is only one possible speed index for Semperit Speed-Life 3 - "Y", which is good for speeds up to 300 km/h.
Semperit Speed-Life 3 is made in 113 sizes, starting from 165/65 R15 up to 295/35 R21.
