175/75 R14 doesn't belong to the most popular dimensions for summer tyres - there are 2 tyre models available, which can be compared to
155/60 R15,
170/60 R17,
160/60 R14. Let's break down the sizing - 75 is height of the tyre, which is calculated as 75% of the tyre width (175mm), which means the sidewall height has 131.25 mm. The wheel diameter is R14, which means it fits to a 14 inch/355.6mm diameter wheel. The total circumference of the tyre is 1941.82 mm, which is very similar to 235/40 R17
(1947.16 mm), 205/45 R17
(1936.16 mm), 195/55 R16
(1950.61 mm), 195/60 R15
(1932.08 mm), 205/40 R18
(1951.56 mm), 185/65 R15
(1952.5 mm), 225/35 R18
(1931.14 mm). There are multiple speed indexes available for summer tyres in 175/75 R14: Q
(160km/h), T
(190km/h). The same goes for weight indexes: 99.