Uniroyal RainSport 3 is a summer tyre made in total of 110 sizes, ranging from R14 to R14 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 225/50 R16 is 40mm wider than the narrowest dimension (185) and 50mm narrower than the widest one (275). 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 Uniroyal RainSport 3 - "Y", which is good for speeds up to 300 km/h. In 225/50 R16, RainSport 3 usually competes against RainSport 5, which is a tyre from Uniroyal with a rating of 62%, compared to 0% of the Uniroyal in question.
