Viking Fourtech is a allround tyre made in total of 32 sizes, ranging from R13 to R13 - 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 10mm narrower than the widest one (235). 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 Viking Fourtech - "W", which is good for speeds up to 270 km/h. Latest test in 225/50 R17 was held by Autobild in 2021, where Fourtech received rating "Satisfactory" and finished on the 11. place. It was tested on a BMW 3.