Maxxis Detonator Tire - 700 x 28c, Wire Bead, Black Smooth siped tread training tire with race pedigree SC - Single compound casing for a durable, dependable tire DC - Dual Compound tread provides a lower rolling resistance center paired with extra grip for the corners SW - SilkWorm increases puncture and tear resistance with a reinforced breaker beneath the tread surface Model Number TB88499600