700/40 R22.5 - Best summer tyres 2025 - market overview, tests, reviews

700/40 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 - 40 is height of the tyre, which is calculated as 40% of the tyre width (700mm), which means the sidewall height has 280 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 215/75 R16(2289.91 mm), 285/40 R20(2312.21 mm), 225/45 R17(1992.71 mm), 295/25 R20(2059.31 mm), 225/55 R18(2213.88 mm), 295/40 R20(2337.34 mm), 225/70 R15(2186.55 mm).