Rotalla Setula 4 Season RA03 is a allround tyre made in total of 122 sizes, ranging from R13 to R13 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 185/55 R15 is 40mm wider than the narrowest dimension (145) and 90mm narrower than the widest one (275). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (185mm), which results in 101.75mm sidewall height. In
185/55 R15, Setula 4 Season RA03 usually competes against
Protech NewGen, which is a tyre from
Viking with a rating of 40%, compared to 74% of the
Rotalla in question.