Electrified Efficiency. Executive Range. The Michelin e.Primacy ST S1 (235/45R18 98W XL) is a premium eco-touring summer tyre engineered specifically to maximize battery range and fuel efficiency for modern EVs and executive sedans. Bearing the "S1" technical designation for optimized rolling resistance and the "ST" (Silence Tuned) characteristics for acoustic comfort, this China-manufactured (CN) tyre delivers an exceptionally smooth, quiet ride. Built with a reinforced Extra Load (98) casing to effortlessly handle high-torque platforms, it is the definitive 18-inch upgrade for vehicles like the Tesla Model 3, Toyota Camry, and Lexus ES. Enjoy completely transparent pricing and professional installation at TyresOnline.sg.