Continental UltraContact is a summer tyre made in total of 80 sizes, ranging from R14 to R14 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 195/65 R15 is 40mm wider than the narrowest dimension (155) and 0mm narrower than the widest one (195). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (195mm), which results in 126.75mm sidewall height. In 195/65 R15, there is only one possible speed index for Continental UltraContact - "V", which is good for speeds up to 240 km/h. In 195/65 R15, UltraContact usually competes against N blue HD Plus, which is a tyre from Nexen with a rating of 42%, compared to 0% of the Continental in question.