Michelin Pilot Sport 4 is a summer tyre made in total of 159 sizes, ranging from R16 to R16 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 245/35 R19 is 40mm wider than the narrowest dimension (205) and 80mm narrower than the widest one (325). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (245mm), which results in 85.75mm sidewall height. In 245/35 R19, there is only one possible speed index for Michelin Pilot Sport 4 - "Y", which is good for speeds up to 300 km/h. In 245/35 R19, Pilot Sport 4 usually competes against Eagle F1 Asymmetric 5, which is a tyre from GoodYear with a rating of 90%, compared to 93% of the Michelin in question.