Tracmax X-Privilo TX-3 is a summer tyre made in total of 28 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 225/35 R20 is 20mm wider than the narrowest dimension (205) and 50mm narrower than the widest one (275). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (225mm), which results in 78.75mm sidewall height. In 225/35 R20, there is only one possible speed index for Tracmax X-Privilo TX-3 - "W", which is good for speeds up to 270 km/h.