Tristar Ecopower 4 is a summer tyre made in total of 39 sizes, ranging from R13 to R13 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 215/55 R16 is 10mm wider than the narrowest dimension (205) and 10mm narrower than the widest one (225). 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 R16, Ecopower 4 usually competes against
Alnac 4G, which is a tyre from
Apollo with a rating of 39%, compared to 38% of the
Tristar in question.