IncomingRiderTeam 1957Antonio Barrutia IturriagoitiaGammaJosé Bernardez Boluja(from 01.09)Antonio Bertran PanadésMobylette - CaobaniaMiguel Bover PonsEspanaAndrea CarreaGirardengo - E.R.G.Adolfo Cruz DiazBoxing ClubEmilio Cruz Diaz (1)Boxing ClubJosé Gomez del MoralCentro-SurAntonio KarmanyCIL - Indaucho - LangaricaRené Marigil DomingoMobylette - CaobaniaRoberto Morales ErostarbeGammaCarmelo Morales ErostarbeEspanaAngiolino PiscagliaSan Pellegrino SportRenato PonziniGirardengo - E.R.G.Antonio Suarez VasquezEspanaGuillermo Timoner ObradorAlcyon - DunlopOutgoingRiderTeam 1958
Lube - NSU