Continental SportContact 6 is a summer tyre made in total of 217 sizes, ranging from R18 to R18 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/35 R20 is 20mm wider than the narrowest dimension (235) and 40mm narrower than the widest one (295). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (255mm), which results in 89.25mm sidewall height. In 255/35 R20, there is only one possible speed index for Continental SportContact 6 - "Y", which is good for speeds up to 300 km/h. In 255/35 R20, SportContact 6 usually competes against Potenza Sport, which is a tyre from Bridgestone with a rating of 87%, compared to 0% of the Continental in question. Latest test in 255/35 R20 was held by Sportscars in 2016, where SportContact 6 received rating "Exemplary" and finished on the 1. place. It was tested on a .
