Michelin Pilot Sport CUP 2 Connect is a summer tyre made in total of 8 sizes, ranging from R17 to R17 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (205mm), which results in 102.5mm sidewall height. In 205/50 R17, there is only one possible speed index for Michelin Pilot Sport CUP 2 Connect - "Y", which is good for speeds up to 300 km/h. In 205/50 R17, Pilot Sport CUP 2 Connect usually competes against SP Sport MAXX RT2, which is a tyre from Dunlop with a rating of 72%, compared to 64% of the Michelin in question.