The Trigger rolls fast on asphalt, hard-pack and gravel paths, making it ideal for those looking to get the most out of a smooth, fast cyclocross course. This tire rolls great on and off-road. Reflective stripe added to increase your visibility.Casin 60 TPIBead: wireCompound: 70aFlat Protection: BlackBelt700 x 38, psi 75-100, approximate weight 520g700 x 42, psi 50-100, approximate weight 565g700 x 47, psi 50-75, approximate weight 600g