Ku qor sii wadida cutubkan - Gustaaf "Guus" Bierings (wuxuu dhashay 28 Sebtember 1956) waa ciyaaryahan baaskiil oo reer Holland ah oo howlgab ah oo firfircoon intii u dhaxeysay 1975 iyo 1981. Wuxuu ka mid ahaa xulka Holland ee ku guuleystay tartanka adduunka ee waddooyinka ee UCI ee 1978
waxaana uu kaalinta 15-aad ka galay tartankii orodka tartanka Olombikada ee sanadkii 1980 tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka tartanka Wuxuu sidoo kale ku guuleystay hal marxalad oo ka mid ah Olympia's Tour sanadkii 1977.