Falken ZIEX ZE914 EcoRun is a summer tyre made in total of 117 sizes, ranging from R13 to R13 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 225/55 R17 is 60mm wider than the narrowest dimension (165) and -10mm narrower than the widest one (215). 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 R17, there are 2 possible speed indexes for Falken ZIEX ZE914 EcoRun - "V","W", which are good for speeds up to 240, 270 km/h. In 225/55 R17, ZIEX ZE914 EcoRun usually competes against Ventus Prime3 K125, which is a tyre from Hankook with a rating of 52%, compared to 0% of the Falken in question.