Michelin Primacy 4+ is a summer tyre made in total of 122 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 235/45 R20 is 50mm wider than the narrowest dimension (185) and 10mm narrower than the widest one (245). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (235mm), which results in 105.75mm sidewall height. In 235/45 R20, there are 2 possible speed indexes for Michelin Primacy 4+ - "V","W", which are good for speeds up to 240, 270 km/h. In 235/45 R20, Primacy 4+ usually competes against Turanza 6, which is a tyre from Bridgestone with a rating of 83%, compared to 77% of the Michelin in question.
Relevant tyre tests in same or similiar dimension (235/45 R20)
Automotorsport Summer tyre test 2024 235/55 R18 good Ranked #8 of 8Securing the last place among eight contenders, the Michelin Primacy 4+ certainly had a mixed performance. Despite its position, it managed to earn a 'Good' final rating, highlighting a complex evaluation. This tyre exhibited significantly short braking distances and responsive handling on dry asphalt, marking its strengths. However, it faced criticism for its long braking distances on wet surfaces, alongside weak cornering grip and poor traction under the same conditions. Concerns were also raised regarding its aquaplaning protection and an increased risk of oversteer during rapid lane changes and load transfer situations on dry roads. Interestingly, the tyre shined in terms of rolling resistance, having the best performance in this category, suggesting an impressive efficiency that unfortunately came at the expense of safety features.