Ridge GRV - 700×38C700x38C All Terrain Gravel Tire. Across the city distance~! Ridge 70038C tire can tackle any surfacepaved roads, gravel tracks, muddy farm lanes, and in between. It has a rugged, layered rubber compound and reinforced sidewalls, and resists punctures, abrasions, and sharp debris. The aggressive tread pattern digs in where you need grip (loose gravel, dirt, wet surfaces), while the center tread rolls smoothly on pavement to minimize drag. Designed with