Vredestein Wintrac Xtreme S is a winter tyre made in total of 85 sizes, ranging from R15 to R15 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 225/50 R17 is 10mm wider than the narrowest dimension (215) and 70mm narrower than the widest one (295). 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, there is only one possible speed index for Vredestein Wintrac Xtreme S - "H", which is good for speeds up to 210 km/h. In 225/50 R17, Wintrac Xtreme S usually competes against Wintrac Pro, which is a tyre from Vredestein with a rating of 62%, compared to 0% of the Vredestein in question. Latest test in 225/50 R17 was held by GTÜ in 2015, where Wintrac Xtreme S received rating "Conditionally recommended" and finished on the 8. place. It was tested on a .
