245/45 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 (245mm), which means the sidewall height has 110.25 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 205/50 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), 275/55 R17
(2306.87 mm), 215/60 R16
(2087.27 mm). You can find 245/45 R20 on 16 car models - mainly .
