Continental Sport Contact II Tires Safety System Breaker Technology, whichpositioned between the tread and the casingis a Nylon/aramid blend for excellent puncture and pinch resistance as well as extended durability. Some Contact Sport II tires may have Sport Contact I labels, but they are actually Sport Contact II tires. Performance tires for the ambitious cyclist. Color: Black. Weight: 610. Tire Bead: Steel. ISO Diameter: 622 / road / 29". ISO Width: 42. Labeled Size: 700 x 42. Tire Type: Clincher. Tire Diameter: 700c. Intended Use: Touring-Hybrid. Defined Color: Black. Flat Protection: Tread Belt. PSI: 65. TPI: 180.