Kumho Ecsta HS51 is a summer tyre made in total of 64 sizes, ranging from R14 to R14 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 225/55 R16 is 60mm wider than the narrowest dimension (165) and 10mm narrower than the widest one (235). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (225mm), which results in 123.75mm sidewall height. In 225/55 R16, there is only one possible speed index for Kumho Ecsta HS51 - "W", which is good for speeds up to 270 km/h. In 225/55 R16, Ecsta HS51 usually competes against Ventus Prime3 K125, which is a tyre from Hankook with a rating of 75%, compared to 78% of the Kumho in question.
