MICHELIN Bib Mousse Inner Tube Front 80/100-21 | 90/90-21 63018

Specifically designed for off-road competition use, at speeds up to 80 mph (130 km/h) – above this speed, heat buildup 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 motorcycles for on-road use, Bib Mousse may be used only with Michelin off-road tires, including StarCross HP4, StarCross MS3, StarCross MH3, S12 XC, M12 XC and Desert Race – because Bib Mousse is shaped for a perfect fit inside these Michelin tires; use of Bib Mousse with other brands of tires can lead to handling instability and possible destruction of the Bib Mousse, Each Bib Mousse includes a tube of Bib Mousse Fitting Gel; installer must be sure to follow installation instructions supplied with the product, Made from a multi-cellular butyl material, Bib Mousse replaces conventional tubes, providing a pressure equivalent of approximately 13 psi, Lighter than a UHD inner tube, equivalent to an inflation pressure of 0.9 bar (13psi), Invented by Michelin for Cross Country, Rally, Enduro and Motocross use, Only to be used in conjunction with Michelin off-road competition tires, The Michelin solution to punctures and pinch flats, Not for use on the public highway (NHS)., Michelin Bib Mousse has a lifespan of up to six months from the date it is first fitted to the motorcycle. This lifespan is significantly reduced with intensive use