What are the differences between Michelin Primacy 4 and 3st tires?

2 Answers
SavannahMarie
07/28/25 10:26pm
1. Different drainage performance: Michelin Primacy 4 features a new tread design through Evergrip technology, providing over 50% more drainage space compared to 3st, resulting in excellent drainage that significantly reduces hydroplaning. 2. Different rubber compound: Compared to 3st, Michelin Primacy 4 adopts a new tread design and new rubber compound, improving both wet braking performance and rolling resistance for both new and worn tires. 3. Different safety performance: Thanks to its new rubber compound, Michelin Primacy 4 demonstrates outstanding braking performance, particularly excelling in wet braking. Official data shows that Primacy 4 outperforms 3st by a full 2.4m in wet braking distance.
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MacDeclan
08/12/25 2:56am
As a veteran driver with over 20 years of experience, I've used both the Primacy 3ST and its upgraded version, the Primacy 4. The main differences lie in safety and durability. The Primacy 4 has a shorter wet braking distance by several meters, an improvement that's particularly noticeable in rainy conditions, allowing for quicker stops and reduced skidding risks. The tread material has also been upgraded, enhancing wear resistance and extending mileage. For instance, while the 3ST might need replacement after 60,000 kilometers, the Primacy 4 can easily last up to 70,000 kilometers, saving both money and hassle. In terms of comfort, both are quiet, but the Primacy 4 has slight optimizations in noise control, making long highway drives less tiring. I believe the Primacy 4 is worth choosing because it maintains the quiet comfort of the 3ST while enhancing safety, especially on slippery roads, offering better protection. If you frequently drive in rainy areas, prioritize safety over price differences—safety is the ultimate saving.
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