Nexen N blue HD plus is a summer tyre made in total of 138 sizes, ranging from R13 to R13 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 225/50 R16 is 70mm wider than the narrowest dimension (155) and 10mm narrower than the widest one (235). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (225mm), which results in 112.5mm sidewall height. In 225/50 R16, there is only one possible speed index for Nexen N blue HD plus - "V", which is good for speeds up to 240 km/h. In 225/50 R16, N blue HD plus usually competes against Ventus Prime3 K125, which is a tyre from Hankook with a rating of 72%, compared to 46% of the Nexen in question.