Specially designed for larger wheel sizes 24″-29″ but also works great on smaller wheels Tapered edges for better tire clearance Off center post tire tread design with flat grooved bottom for premium all terrain stopping. Street, park, trail or track, wet or dry conditions, weve got you covered with our range of custom compounds Dual compound of Salmon and Black compounds for more controlled, smoother stopping Model AT Compatibility Linear Post Threaded Compound Dual