275/55R20 Michelin Primacy A/S 117WWhere reliability meets refinement: the 275 55R20 Michelin Primacy A S 117W. The PRIMACY A S from Michelin focuses on stability, road feel, and everyday ease of use. With a Blackwall sidewall, the tire maintains a sleek profile and dependable toughness. The tread pattern is tuned to maintain traction on dry pavement, manage water in the wet, and stay composed in light snow. Well matched to PASSENGER CUV SUV ALL SEASON, it serves drivers who want