205/40 R17 - Best tyres 2026 - 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 255/35 R19(2076.91 mm), 185/50 R16(1857.94 mm), 255/45 R18(2157.33 mm), 185/65 R15(1952.5 mm), 255/60 R17(2317.87 mm), 195/45 R15(1748.3 mm), 265/30 R20(2095.44 mm). You can find 205/40 R17 on 16 car models - mainly KTM, Skoda, smart, Abarth, Ford.