175/55 R15 - Best summer tyres 2026 - market overview, tests, reviews

175/55 R15 doesn't belong to the most popular dimensions for summer tyres - there are 18 tyre models available, which can be compared to 185/55 R15, 195/55 R15, 175/60 R15. Let's break down the sizing - 55 is height of the tyre, which is calculated as 55% of the tyre width (175mm), which means the sidewall height has 96.25 mm. The wheel diameter is R15, which means it fits to a 15 inch/381mm diameter wheel. The total circumference of the tyre is 1801.7 mm, which is very similar to 160/60 R15(1800.13 mm), 175/70 R13(1807.04 mm), 195/50 R15(1809.56 mm), 165/65 R14(1791.02 mm), 185/60 R14(1814.58 mm), 155/80 R13(1816.47 mm), 215/40 R16(1817.1 mm). There are multiple speed indexes available for summer tyres in 175/55 R15: H(210km/h), T(190km/h), V(240km/h). The same goes for weight indexes: 77.