275/45 R20 - Best tyres 2025 - market overview, tests, reviews
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275/45 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 - 45 is height of the tyre, which is calculated as 45% of the tyre width (275mm), which means the sidewall height has 123.75 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 215/65 R15(2075.02 mm), 285/35 R19(2142.88 mm), 215/85 R16(2425 mm), 285/45 R20(2401.75 mm), 225/45 R19(2152.31 mm), 295/30 R20(2151.99 mm), 225/60 R15(2045.18 mm). You can find 275/45 R20 on 6 car models - mainly BMW, Maybach, Porsche, Volkswagen, Volvo.
