Toyo Observe S944 is a winter tyre made in total of 66 sizes, ranging from R14 to R14 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 235/55 R17 is 60mm wider than the narrowest dimension (175) 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 (235mm), which results in 129.25mm sidewall height. In
235/55 R17, Observe S944 usually competes against
MP93 Nordicca, which is a tyre from
Matador with a rating of 40%, compared to 51% of the
Toyo in question.
Winter
