155/60 R15 doesn't belong to the most popular dimensions for summer tyres - there are 6 tyre models available, which can be compared to
175/55 R15,
160/60 R14,
170/60 R17. 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 R15, which means it fits to a 15 inch/381mm diameter wheel. The total circumference of the tyre is 1781.28 mm, which is very similar to 175/60 R14
(1776.88 mm), 165/65 R14
(1791.02 mm), 165/70 R13
(1763.06 mm), 160/60 R15
(1800.13 mm), 175/55 R15
(1801.7 mm), 185/55 R14
(1756.46 mm), 175/70 R13
(1807.04 mm). There are multiple speed indexes available for summer tyres in 155/60 R15: H
(210km/h), T
(190km/h). The same goes for weight indexes: 74.