255/30 R20 - Best winter tyres 2026 - market overview, tests, reviews

255/30 R20 doesn't belong to the most popular dimensions for winter tyres - there are 3 tyre models available, which can be compared to 155/60 R15, 170/60 R17, 160/60 R14. Let's break down the sizing - 30 is height of the tyre, which is calculated as 30% of the tyre width (255mm), which means the sidewall height has 76.5 mm. The wheel diameter is R20, which means it fits to a 20 inch/508mm diameter wheel. The total circumference of the tyre is 2076.59 mm, which is very similar to 255/35 R19(2076.91 mm), 255/40 R18(2077.22 mm), 255/45 R17(2077.54 mm), 215/65 R15(2075.02 mm), 305/25 R20(2075.02 mm), 195/65 R16(2073.14 mm), 225/45 R18(2072.51 mm). There are multiple speed indexes available for winter tyres in 255/30 R20: W(270km/h). The same goes for weight indexes: 92. You can find 255/30 R20 on 1 car models - mainly .