Unigrip Road Vantage is a summer tyre made in total of 11 sizes, ranging from R14 to R14 - this particular dimension is R14, which means it fits to a 14 inch/355.6mm diameter wheel. 205/80 R14 is 20mm wider than the narrowest dimension (185) and 30mm narrower than the widest one (235). This tyre profile of 80 means the sidewall height of the tyre is 80% of the tyre width (205mm), which results in 164mm sidewall height. In 205/80 R14, there is only one possible speed index for Unigrip Road Vantage - "R", which is good for speeds up to 170 km/h.