Kenda Wintergen 2 KR501 is a winter tyre made in total of 342 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/45 R18 is 90mm wider than the narrowest dimension (135) and 50mm narrower than the widest one (275). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (225mm), which results in 101.25mm sidewall height. In 225/45 R18, there are 2 possible speed indexes for Kenda Wintergen 2 KR501 - "Q","V", which are good for speeds up to 160, 240 km/h. In 225/45 R18, Wintergen 2 KR501 usually competes against Winter Sport 5, which is a tyre from Dunlop with a rating of 88%, compared to 0% of the Kenda in question.