Tough enough for the meanest streets Durable enough for urban assault, park riding, commuting, cargo bikes, etc. Grooved slick tread design Wrap around tread pattern As the original urban assault tire, Maxxis designed the Hookworm to take the abuses of the most aggressive street riders. Bead-to-bead tread provides durability and traction whether you're dropping staircases, grinding rails or riding in your local skate park.