Apollo Aspire XP Winter is a winter tyre made in total of 20 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/45 R18 is 30mm wider than the narrowest dimension (215) and 0mm narrower than the widest one (245). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (245mm), which results in 110.25mm sidewall height. In 245/45 R18, there is only one possible speed index for Apollo Aspire XP Winter - "V", which is good for speeds up to 240 km/h. In 245/45 R18, Aspire XP Winter usually competes against Radial CHAMPIRO WINTERPRO HP, which is a tyre from GT with a rating of 44%, compared to 45% of the Apollo in question. Latest test in 245/45 R18 was held by Autobild in 2020, where Aspire XP Winter received rating "Good" and finished on the 9. place. It was tested on a BMW 5.
