The Primacy 4 ST is Michelin's latest Ultra High Performance Comfort oriented tire, designed for passenger vehicles, coupes and sedans including the Honda Accord, BMW 3 series and Mercedes-Benz C-class. What separates the Primacy 4 from its competitors is that the tire will maintain the same level of performance throughout its service life, "Safe When New, Safe When Worn". The Primacy 4 provides a substantially quiet comfortable ride due to their "Silent Rib design" which uses inter-locking bands to minimize tread block deformation. The Primacy 4 uses Michelin's EverGrip that is allows for extended life and safe-use even after the tires are worn.
