425/65 R22.5 - Best summer tyres 2025 - market overview, tests, reviews

425/65 R22.5 doesn't belong to the most popular dimensions for summer tyres - there are tyre models available, which can be compared to 325/30 R21, 155/60 R15, 155/65 R13. Let's break down the sizing - 65 is height of the tyre, which is calculated as 65% of the tyre width (425mm), which means the sidewall height has 276.25 mm. The wheel diameter is R23, which means it fits to a 23 inch/584.2mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 275/50 R20(2459.87 mm), 215/60 R16(2087.27 mm), 285/30 R20(2133.14 mm), 215/75 R16(2289.91 mm), 285/40 R20(2312.21 mm), 225/45 R17(1992.71 mm), 295/25 R20(2059.31 mm). There are multiple speed indexes available for summer tyres in 425/65 R22.5: K(km/h). The same goes for weight indexes: 165.