John Gadret is a French former professional racing cyclist in cyclo-cross and road racing, currently racing for the USO Bruay-la-Buissière amateur team. He became a stagiaire for Cofidis in 2003 before turning professional with the Vlaanderen–T Interim team in 2004.

The 2007 Tour de France the 94th running of the race, took place from 7 to 29 July. The Tour began with a prologue in London, and ended with the traditional finish in Paris. Along the way, the route also passed through Belgium and Spain. It was won by Spanish rider Alberto Contador.