Michelin PILOT ALPIN 5 is a winter tyre made in total of 102 sizes, ranging from R16 to R16 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 235/50 R19 is 30mm wider than the narrowest dimension (205) and 50mm narrower than the widest one (285). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (235mm), which results in 117.5mm sidewall height. In 235/50 R19, there is only one possible speed index for Michelin PILOT ALPIN 5 - "H", which is good for speeds up to 210 km/h. In 235/50 R19, PILOT ALPIN 5 usually competes against UltraGrip Performance+, which is a tyre from GoodYear with a rating of 87%, compared to 100% of the Michelin in question.