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. 225/50 R17 is 50mm wider than the narrowest dimension (175) and 0mm narrower than the widest one (225). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (225mm), which results in 112.5mm sidewall height. In
225/50 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. Latest test in
225/50 R17 was held by AutoMotorSport in 2020, where Observe S944 received rating "Satisfactory" and finished on the 7. place. It was tested on a
BMW 3.
Winter
