Kleber Citilander is a summer tyre made in total of 39 sizes, ranging from R14 to R14 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/75 R17.5 is 50mm wider than the narrowest dimension (175) and 100mm narrower than the widest one (325). This tyre profile of 75 means the sidewall height of the tyre is 75% of the tyre width (225mm), which results in 168.75mm sidewall height. In 225/75 R17.5, there is only one possible speed index for Kleber Citilander - "Y", which is good for speeds up to 300 km/h.