Maxxis Detonator SC/SW Tire Max Detonator 27.5x1.5 Bk Wire/60 Sc/sw One of Maxxis` most popular road tires in a single compound 650B version SC - Single compound casing for a durable, dependable tire SW - SilkWorm increases puncture and tear resistance with a reinforced breaker beneath the tread surface Weight Model Number TB85917000