245/45 R17 - Best tyres 2025 - market overview, tests, reviews

245/45 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 - 45 is height of the tyre, which is calculated as 45% of the tyre width (245mm), which means the sidewall height has 110.25 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 235/45 R17(2020.99 mm), 235/55 R18(2248.44 mm), 235/65 R18(2396.09 mm), 155/80 R13(1816.47 mm), 245/35 R21(2214.51 mm), 165/65 R13(1711.23 mm), 245/45 R20(2288.65 mm). You can find 245/45 R17 on 9 car models - mainly Mercedes-Benz, Audi, BMW, CITROËN, Chevrolet.