155/60 R20 doesn't belong to the most popular dimensions for summer tyres - there are 1 tyre models available, which can be compared to
155/60 R15,
170/60 R17,
160/60 R14. Let's break down the sizing - 60 is height of the tyre, which is calculated as 60% of the tyre width (155mm), which means the sidewall height has 93 mm. The wheel diameter is R20, which means it fits to a 20 inch/508mm diameter wheel. The total circumference of the tyre is 2180.27 mm, which is very similar to 235/45 R19
(2180.58 mm), 215/55 R18
(2179.32 mm), 265/35 R20
(2178.69 mm), 265/40 R19
(2182.15 mm), 195/80 R15
(2177.12 mm), 265/30 R21
(2175.24 mm), 265/45 R18
(2185.61 mm). There are multiple speed indexes available for summer tyres in 155/60 R20: Q
(160km/h). The same goes for weight indexes: 80.
