Imperial EcoDriver 2 is a summer tyre made in total of 12 sizes, ranging from R13 to R13 - this particular dimension is R14, which means it fits to a 14 inch/355.6mm diameter wheel. 195/70 R14 is 40mm wider than the narrowest dimension (155) and -30mm narrower than the widest one (165). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (195mm), which results in 136.5mm sidewall height. In 195/70 R14, there is only one possible speed index for Imperial EcoDriver 2 - "T", which is good for speeds up to 190 km/h.