205/40 R17 - Best tyres 2025 - market overview, tests, reviews

205/40 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 (205mm), which means the sidewall height has 82 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 285/35 R18(2063.08 mm), 215/85 R16(2425 mm), 285/45 R19(2321.95 mm), 225/45 R19(2152.31 mm), 295/30 R19(2072.19 mm), 225/60 R15(2045.18 mm), 295/45 R20(2430.02 mm). You can find 205/40 R17 on 16 car models - mainly KTM, Skoda, smart, Abarth, Ford.