Following a series of Michelin tire failures during the United States Grand Prix weekend at Indianapolis, and without an agreement being reached, 14 cars from seven teams in Michelin tires withdrew after completing the formation lap, leaving only six cars from three teams on Bridgestone tires to race.

Compagnie Générale des Établissements Michelin SCA, commonly referred to as Michelin, is a French multinational tyre manufacturing company based in Clermont-Ferrand in the Auvergne-Rhône-Alpes région of France. It is the second largest tyre manufacturer in the world behind Bridgestone and larger than both Goodyear and Continental. In addition to the Michelin brand, it also owns the Kléber tyres company, Uniroyal-Goodrich Tire Company, SASCAR, Bookatable and Camso brands. Michelin is also notable for its Red and Green travel guides, its roadmaps, the Michelin stars that the Red Guide awards to restaurants for their cooking, and for its company mascot Bibendum, colloquially known as the Michelin Man, who is a humanoid consisting of tyres.

A tire or tyre is a ring-shaped component that surrounds a wheel's rim to transfer a vehicle's load from the axle through the wheel to the ground and to provide traction on the surface over which the wheel travels. Most tires, such as those for automobiles and bicycles, are pneumatically inflated structures, providing a flexible cushion that absorbs shock as the tire rolls over rough features on the surface. Tires provide a footprint, called a contact patch, designed to match the vehicle's weight and the bearing on the surface that it rolls over by exerting a pressure that will avoid deforming the surface.

The 2005 United States Grand Prix was a Formula One motor race held on June 19, 2005, at the Indianapolis Motor Speedway and was the ninth race of the 2005 Formula One World Championship. The event is one of the most infamous races in motor sports history. Out of the 20 cars that entered the race, only the six cars from the teams using Bridgestone tyres competed. The remaining fourteen entrants, all using Michelin tyres, completed the formation lap, but retired to the pit lane before the race started.