180/70 R16 doesn't belong to the most popular dimensions for summer tyres - there are 4 tyre models available, which can be compared to
155/60 R15,
170/60 R17,
160/60 R14. Let's break down the sizing - 70 is height of the tyre, which is calculated as 70% of the tyre width (180mm), which means the sidewall height has 126 mm. The wheel diameter is R16, which means it fits to a 16 inch/406.4mm diameter wheel. The total circumference of the tyre is 2068.42 mm, which is very similar to 205/55 R17
(2064.97 mm), 295/30 R19
(2072.19 mm), 225/45 R18
(2072.51 mm), 195/65 R16
(2073.14 mm), 225/50 R17
(2063.4 mm), 285/35 R18
(2063.08 mm), 305/25 R20
(2075.02 mm). There are multiple speed indexes available for summer tyres in 180/70 R16: H
(210km/h), V
(240km/h). The same goes for weight indexes: 77.
