Avon ZV7 is a summer tyre made in total of 58 sizes, ranging from R15 to R15 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 225/50 R17 is 40mm wider than the narrowest dimension (185) and 30mm narrower than the widest one (255). 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 Avon ZV7 - "W","Y", which are good for speeds up to 270, 300 km/h. In 225/50 R17, ZV7 usually competes against Radial Champiro FE1, which is a tyre from GT with a rating of 0%, compared to 17% of the Avon in question. Latest test in 225/50 R17 was held by Autobild in 2017, where ZV7 received rating "Satisfactory" and finished on the 15. place. It was tested on a .
