Roadstone Winguard Sport is a winter tyre made in total of 12 sizes, ranging from R15 to R15 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 215/50 R17 is 30mm wider than the narrowest dimension (185) and 60mm narrower than the widest one (275). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (215mm), which results in 107.5mm sidewall height. In
215/50 R17, Winguard Sport usually competes against
Blizzak LM-005, which is a tyre from
Bridgestone with a rating of 82%, compared to 0% of the
Roadstone in question.
