Tom Simpson ( 30 November 1937 - 13 July 1967 ) was an English road racing cyclist who died of exhaustion on the slopes of Mont Ventoux riding the 13th stage of the Tour de France in 1967 . Tom Simpson ( 30 November 1937 -- 13 July 1967 ) was an English road racing cyclist who died of exhaustion on the slopes of Mont Ventoux during the 13th stage of the Tour de France in 1967 .