Tire mousse

Tire mousse is a component in certain types of off-road run-flat tires, designed to allow them to maintain functionality despite a puncture. It is a ring of flexible foam that is placed inside a tire before it is fitted on the rim.[1] The original run-flat mousse, called Bib-Mousse, was developed in 1984 by Michelin, for use on motorbikes in enduro, rally-raid and motocross events.[1] In 1987, Michelin debuted its ATS system (Appui Temporaire Souple, or Flexible Temporary Support) on the works Renault 11s of Jean Ragnotti and François Chatriot on the Acropolis Rally.[1] It won the Technological Innovation Award in 1988.[1]

Use

The mousse is compressed as soon as the tire is inflated. Once the tire begins being used, it heats up and becomes primed for use.[1] In the event of an air leak, and subsequent loss of pressure, the mousse expands to fill the void, giving a pressure almost equal to that of a properly inflated tire.[1][2]

Mousse is used on cars and motorcycles in certain types of off-road racing such as the Dakar Rally.[3][4]

Bib-Mousse

Bib-Mousse is a Tire mousse made by French tire manufacturer Michelin. The Bib-Mousse was named after Michelin's well-known mascot, Bibendum.[5] It is a ring of butyl honeycomb foam with its cells filled with nitrogen. It has a smooth-molded outer skin that is designed to slip into specific size off-road motorcycle tires.

References
  1. Run-Flat Mousse Tyres In Detail Motorsport.com Archived 2011-06-06 at the Wayback Machine
  2. Michelin Motorcycle Tyres: Bib-Mousse
  3. "Run-Flat Tires:A New Standard Rising - MSN Autos". Archived from the original on 2008-03-08. Retrieved 2008-01-15.
  4. WRC: Pirelli's gravel tyre gets 'green light'
  5. "Michelin Dirt Bike Tires - Which Tire is the Best for You?". Bikes. 2018-11-12. Retrieved 2023-10-11.
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