Kumho Ecsta PS71 SUV is a summer tyre made in total of 55 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 235/45 R20 is 20mm wider than the narrowest dimension (215) and 50mm narrower than the widest one (285). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (235mm), which results in 105.75mm sidewall height. In 235/45 R20, there are 2 possible speed indexes for Kumho Ecsta PS71 SUV - "V","W", which are good for speeds up to 240, 270 km/h. In 235/45 R20, Ecsta PS71 SUV usually competes against Ecsta PS71, which is a tyre from Kumho with a rating of 83%, compared to 64% of the Kumho in question.