Goodyear Eagle NCT5 Asymmetric is a summer tyre made in total of 12 sizes, ranging from R17 to R17 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 225/50 R17 is 20mm wider than the narrowest dimension (205) and 20mm narrower than the widest one (245). 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 R17, there are 2 possible speed indexes for Goodyear Eagle NCT5 Asymmetric - "W","Y", which are good for speeds up to 270, 300 km/h. In 225/50 R17, Eagle NCT5 Asymmetric usually competes against Pilot Sport 5, which is a tyre from Michelin with a rating of 97%, compared to 0% of the Goodyear in question.