Dee ihe na-aga n'ihu maka paragraf a - Bart van Est (amụrụ 1 Nọvemba 1956) bụ onye ọgba tum tum lara ezumike nká na Netherlands nke na-arụ ọrụ n'etiti 1976 na 1983. Ọ bụ akụkụ nke ndị otu Dutch nke meriri asọmpi UCI Road World Championships nke afọ 1978
n'asọmpi ịgba ọsọ otu oge. O merikwara na Ronde van Noord-Holland (1977) na usoro nke Olympia's Tour (1977 na 1978).