Continental SportContact 6 is a summer tyre made in total of 195 sizes, ranging from R18 to R18 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 245/40 R19 is 10mm wider than the narrowest dimension (235) and 50mm narrower than the widest one (295). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (245mm), which results in 98mm sidewall height. In 245/40 R19, there is only one possible speed index for Continental SportContact 6 - "Y", which is good for speeds up to 300 km/h. In 245/40 R19, SportContact 6 usually competes against Ventus S1 evo3 K127, which is a tyre from Hankook with a rating of 74%, compared to 77% of the Continental in question.