Apollo Aspire XP is a summer tyre made in total of 50 sizes, ranging from R16 to R16 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 215/55 R17 is 10mm wider than the narrowest dimension (205) and 60mm narrower than the widest one (275). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (215mm), which results in 118.25mm sidewall height. In 215/55 R17, there is only one possible speed index for Apollo Aspire XP - "Y", which is good for speeds up to 300 km/h. Latest test in 215/55 R17 was held by ACE in 2020, where Aspire XP received rating "Recommended" and finished on the 4. place. It was tested on a Audi Q2.