The original urban assault tyre, designed to take the abuse of the most aggressive street-style riders. gives durability and traction whether you're dropping staircases, grinding rails or riding in your local skatepark.Curved, grooved-slick design,Urban assault durability,.Specification Conditions: Street, Park, Flat, Vert,TPI: 60,Bead: Wire,Ply Construction: Dual,Compound: Single,Max PSI: 110,.