195/40 R17 - Best tyres 2025 - market overview, tests, reviews

195/40 R17 doesn't belong to the most popular dimensions for tyres - there are tyre models available, which can be compared to 325/30 R21, 155/60 R15, 155/65 R13. Let's break down the sizing - 40 is height of the tyre, which is calculated as 40% of the tyre width (195mm), which means the sidewall height has 78 mm. The wheel diameter is R17, which means it fits to a 17 inch/431.8mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 215/55 R16(2019.73 mm), 275/70 R16(2486.26 mm), 215/70 R15(2142.57 mm), 285/35 R21(2302.47 mm), 225/35 R20(2090.73 mm), 285/50 R20(2491.28 mm), 225/50 R18(2143.19 mm).