Michelin e.Primacy is a summer tyre made in total of 107 sizes, ranging from R15 to R15 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/45 R20 is 90mm wider than the narrowest dimension (165) and -30mm narrower than the widest one (225). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (255mm), which results in 114.75mm sidewall height. In 255/45 R20, there is only one possible speed index for Michelin e.Primacy - "V", which is good for speeds up to 240 km/h. In 255/45 R20, e.Primacy usually competes against Ecocontact 6, which is a tyre from Continental with a rating of 53%, compared to 46% of the Michelin in question. Latest test in 255/45 R20 was held by Automotorsport in 2023, where e.Primacy received rating "Very good" and finished on the 3. place. It was tested on a Kia EV6.
Relevant tyre tests in same or similiar dimension (255/45 R20)
Automotorsport Summer tyre test 2023 255/45 R20 very good Ranked #3 of 10Securing a commendable third place among ten competitors, the Michelin e.Primacy tire emerged as a standout performer in its category, earning a 'Very Good' final rating that speaks volumes about its quality. Testers were particularly impressed by its superior deceleration on wet surfaces, highlighting it as the tire’s standout feature. It was also praised for its exceptionally low rolling resistance and quiet rolling noise, making it not only efficient but pleasantly unobtrusive. The tire’s handling was noted for being easily manageable, with a reliable inclination towards safe understeer, indicating a balanced and predictable driving experience. However, a point of critique was its somewhat lacking ride comfort due to a lower level of inherent damping. Further distinguishing this tire were its top-notch performances in specific disciplines, including exterior noise, rolling resistance, and wet braking, showcasing its well-rounded capabilities.