Yokohama Advan Sport V107 is a summer tyre made in total of 72 sizes, ranging from R18 to R18 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 255/35 R18 is 30mm wider than the narrowest dimension (225) and 50mm narrower than the widest one (305). 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 R18, there is only one possible speed index for Yokohama Advan Sport V107 - "Y", which is good for speeds up to 300 km/h. In 255/35 R18, Advan Sport V107 usually competes against Quatrac Pro+, which is a tyre from Vredestein with a rating of 52%, compared to 42% of the Yokohama in question.