Continental SportContact 5 SUV is a summer tyre made in total of 93 sizes, ranging from R18 to R18 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 255/50 R19 is 40mm wider than the narrowest dimension (215) and 40mm narrower than the widest one (295). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (255mm), which results in 127.5mm sidewall height. In 255/50 R19, there are 2 possible speed indexes for Continental SportContact 5 SUV - "W","Y", which are good for speeds up to 270, 300 km/h. In 255/50 R19, SportContact 5 SUV usually competes against Eagle F1 Asymmetric 5, which is a tyre from GoodYear with a rating of 90%, compared to 82% of the Continental in question.