195/75 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 (195mm), which means the sidewall height has 146.25 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 2036.07 mm, which is very similar to 180/60 R17(2035.12 mm), 275/30 R19(2034.5 mm), 205/65 R15(2034.18 mm), 235/30 R20(2038.89 mm), 235/35 R19(2032.92 mm), 160/60 R18(2039.52 mm), 215/50 R17(2031.98 mm). There are multiple speed indexes available for summer tyres in 195/75 R14: Q(160km/h), R(170km/h). The same goes for weight indexes: 106.