The Michelin e.Primacy in size 235/45R21 97W is a flagship eco-responsible summer tyre, widely recognized as the 2026 leader in rolling resistance and efficiency. The S1 marking indicates a technically improved version of the original compound for enhanced performance, while (TH) confirms it was manufactured in Michelin's high-tech Thailand facility.

The Y23 batch signifies 2023 production, making it a high-value option for drivers who want premium EV-specific technology at a more accessible price point.