Huge air-volume (2.5") softens the drops, while the inverted tread design makes rolling resistance minimal. Bead-to-bead tread provides durability and traction whether you're dropping staircases, grinding rails and riding in your local skatepark or just kicking back and cruising down the street. This tire rides like a cadillac if you want comfort but eats up the skatepark and stairs when your wilder side comes out.