Continental UltraContact NXT 225/55 R18

Continental UltraContact NXT is a summer tyre made in total of 23 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/55 R18 is 20mm wider than the narrowest dimension (205) and 30mm narrower than the widest one (255). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (225mm), which results in 123.75mm sidewall height. In 225/55 R18, UltraContact NXT usually competes against Eagle F1 Asymmetric 6, which is a tyre from Goodyear with a rating of 93%, compared to 99% of the Continental in question.