Vredestein Ultrac+ 245/40 R17

Vredestein Ultrac+ is a summer tyre made in total of 87 sizes, ranging from R15 to R15 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 245/40 R17 is 70mm wider than the narrowest dimension (175) and -50mm narrower than the widest one (195). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (245mm), which results in 98mm sidewall height.