[1] In 1982, Cobas developed a stronger and lighter aluminum twin-beam chassis to replace the steel backbone frames.
In 1982, he created the Kobas brand motorcycle designing his own chassis powered by Rotax engines.
Pons would ride a JJ Cobas motorcycle in the 1984 250cc world championship, garnering their first Grand Prix victory with a win at the Spanish Grand Prix and, ended the season in fourth place in the championship.
[3] Even greater success came in 1989 when a Cobas-designed motorcycle ridden by Àlex Crivillé won the 125cc world championship.
In this role, he prepared motorcycles ridden to Grand Prix victories by Alberto Puig and Carlos Checa.