TUBE 140/80-18 BIB MOUSSE ENDURO XTREM (M14X)Protection against flats for serious off road racers. Made from a multi cellular butyl material, replaces conventional tubes, providing a pressure equivalent of approximately 13 psi (0. 9 bar). Specifically designed for off road use, at speeds up to 80 mph (130 km h). Above this speed, heat build up can lead to rapid destruction of the Bib Mousse, resulting in serious injury to the rider. Under no circumstances should Bib Mousse be fitted to