Grand Prix de la montagne
Julio Jiménez again won the King of the Mountains in the 1964 and 1965 Vuelta a España. "Kas-Kaskol" dominated the 1966 Vuelta with Francisco Gabica winning, Eusebio Velez Mendizabal second and Carlos Echeverría third. It also dominated the King of the Mountains competition with Gregorio San Miguel winning. The team won six stages and held the yellow jersey for 14 of the 18 stages.