[1] The Kas team began operating in 1958, and in that year one of its riders, Fausto Izan, won a stage in the Vuelta a España.

[2] In 1959 the team signed the 1958 Spanish champion, Federico Bahamontes,[3] who at that time had won two King of the Mountains classifications in both the Tour de France and the Vuelta a España.

Bahamontes left in 1960 but the team won the King of the Mountains in the 1960, 1961 and 1962 Vuelta a España with Antonio Karmay Mestre.

Kas–Kaskol dominated the 1966 Vuelta with Francisco Gabica winning, Eusebio Vélez Mendizabal second and Carlos Echeverría third.

[6] The following year Kas won the mountains, points and team classifications as well as holding the yellow jersey for 19 stages until the final time trial, when Agustín Tamames took it and left the Kas teammates Domingo Perurena and Miguel María Lasa on the lower steps of the podium.

[7] Kas won the Vuelta again in 1976 with José Pesarrodona and the mountains competition with Andrés Oliva.

In 1985 Kas returned as a co-sponsor of the French-based Skil–Sem team run by French directeur sportif Jean de Gribaldy.

The team had further success in 1986 with Kelly, who was the World's number 1 rider during this period, winning 'monument' classics Milan–San Remo and Paris–Roubaix, with Acácio da Silva who won the Züri-Metzgete, and with the Swiss cyclo-cross champion, Pascal Richard.