Browse the derailleurs by brand using the links below.

Where you see a red link, this is for a derailleur model dating from 1950 or before, which I do not (yet?) have in my collection - but for which I do have some kind of real and relevant documentation.



  1. Triplex Sport    1970

  2. Triplex Profesional blue (1st style)    1970

  3. Triplex Profesional red (2nd style)    1970?

  4. Triplex Profesional (3rd style)    1975?

  5. Triplex Profesional (4th style)    1985?

  6. Triplex CS racing    1985?

  7. Triplex CS touring    1985?

  8. Triplex Extra    1985?


  1. Zeus Gran Sport (1st style)    1962?

  2. Zeus Gran Sport (2nd style)    1975?

  3. Zeus Criterium (1st style)    1969

  4. Zeus Criterium (2nd style)    1975?

  5. Zeus Criterium (3rd style)    1980?

  6. Zeus 2000 (1st style)    1975

  7. Zeus 2000 (2nd style)    1979?

  8. Zeus 2000 black (2nd style)    1979?

  9. Zeus 2000 gold (2nd style)    1979?

  10. Zeus Supercronos    1984

  11. Zeus Alfa Junior    1970

  12. Zeus Alfa 72 Especial    1972?

  13. Zeus Alfa    1974?

  14. Zeus New Racer (1st style)    1980?

  15. Zeus New Racer (2nd style)    1984

See also: Spanish documents

The story of the Spanish derailleur is the story of two brands, and two social and economic factors.

The two brands are Zeus and Triplex, both based in Eibar in the Basque country in Northern Spain. Of the two Zeus was the first, the most influential and the most ambitious.

The first of the two social and economic factors was Spain’s isolation during the years of Franco’s fascist dictatorship (1936 to Franco’s death in 1975 and on to 1978 and the adoption of a new constitution). Although Spain was open to tourists, and Spanish industry could (and did) trade with the world, Spain remained an insular society, both shunning and shunned by the outside world. The history of Zeus somehow reflects this, the company’s focus on self reliance, building both bikes and components, its deep sense of being wronged in some way by history and/or the world’s devotion to Campagnolo - both reflect the inward looking nature of Franco’s Spain. But this slightly paranoid world view also seems to have provided the energy that drove Zeus - once Spain emerged from its isolation to become a more ‘normal’ European country the company rapidly disappeared. More...