365/85 R20 - Best allround tyres 2025 - market overview, tests, reviews

365/85 R20 doesn't belong to the most popular dimensions for allround 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 - 85 is height of the tyre, which is calculated as 85% of the tyre width (365mm), which means the sidewall height has 310.25 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 205/45 R17(1936.16 mm), 265/70 R16(2442.27 mm), 205/60 R15(1969.78 mm), 275/35 R20(2200.69 mm), 215/40 R16(1817.1 mm), 275/45 R19(2293.68 mm), 215/55 R16(2019.73 mm). There are multiple speed indexes available for allround tyres in 365/85 R20: G(km/h), K(km/h), L(km/h). The same goes for weight indexes: 164.