265/40 R20 - Best tyres 2026 - market overview, tests, reviews

265/40 R20 doesn't belong to the most popular dimensions for 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 (265mm), which means the sidewall height has 106 mm. The wheel diameter is R20, which means it fits to a 20 inch/508mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 200/55 R17(2047.69 mm), 265/60 R18(2435.36 mm), 205/50 R17(2000.57 mm), 275/30 R20(2114.29 mm), 205/65 R16(2113.98 mm), 275/40 R20(2287.08 mm), 215/45 R16(1884.64 mm).