1970 – This year saw the introduction of a major change in the regulations of the Trophy, separating the riders’ nationality from that of his machinery and in fact allowing those countries, like France, which had a good rider group did not have nationall produced motorcycles to take to the competitions.
This change proved to be a bit of advantage to everyone, even for Italy, which could rely on a host of good riders many of whom however were already contracted and funded by excellent foreign-made motorcycles, KTM or Puch, and therefore would be able to compete riding the bike that they already used in the other championships.
Over the years the sport of off-road became consecrated world wide and thanks to this new opportunity there was an audience of nations involved and drivers from increasingly wide-spread countries.
In 1970, the 45th ISDT landed for the first time in Spain, specifically to San Lorenzo de El Escorial, in the heart of the Sierra de Guadarrama.
From October 5th to 10th, 323 pilots battled along a long and selective path in adverse weather conditions, which even involved snow.
The battle was fierce, but the Czechs on Jawas prevailed, taking both the Trophy and the Silver Vase.
In the Trophy, Josef Fojtík, Jaroslav Bříza, Květoslav Masita, Češpiva Zdenek, Petr Čemus and František Mrázek asserted themselves against the strong Zündapps of West Germany, who had to settle for second place in the Trophy, but made their names in the special Industry teams.
The other major protagonists of the MZ, the GDR, as always were favored in the betting, but were quickly put out of play by the new and defective electric lighting which halted three individuals, interrupting their prestigious records.
Beginning in 1962, in fact, no MZ engaged in the Trophy had ever failed, except for the disastrous fall of Salevsky on the Six Days of St. Pellegrino in 1968, demonstrating an efficiency and reliability without compare. Three Italian teams participated, once again all riding Moto Morinis.
The tally of medals was respectable (16 gold, 2 silver, 1 bronze), while the Team of Demetrio Bonini, Edoardo Dossena, Franco Dall 'Ara, Carlo Paganessi, Pierluigi Rottigni and Eugenio Saini was classifed fourth in the Trophy behind Czechoslovakia, West Germany and Sweden.

1971 - The new decade began with rapid generational changes, bringing to the fore new riders and bikes. Dr. Mario Tremaglia, Italian team historian (see the chapter on Memories) had this to say: “The Motor Club Bergamo was and is still the fertile womb of this motorcycle speciality that was beginning to interest the territories of Brescia and Milan, but its beating heart was here in Bergamo."
The first generation of Bergamo riders like Eugenio and Gianfranco Saini, Luciano, Franco and Sandro Dall’Ara, Tullio Masserini, Dario Basso, Carlo Moscheni, Pietro Carissoni, Enrico Vanoncini, Sergio Cremaschini, Antonio Piazzalunga, Costanzo Daminelli, Lino Cornago and many others who, in the saddles of four stroke bikes had written whole chapters of the history of world enduro, were about to be succeeded by their now emerging students such as Arnaldo Farioli, Alessandro Gritti, Augusto Taiocchi, Imerio Testori, Gualtiero Brissoni, Elia Andrioletti, Guglielmo Andreini, Fausto Oldrati, Dino and Franco Gualdi, Carlo Rinaldi, Bruno Ferrari, Piero Polini, Gino Perego, Giuseppe and Angelo Signorelli, Walter Bettoni, Pierluigi Rottigni and many other exciting youngsters who bore witness to and renewed the successes for many years and throughout the world, in the saddles of the new two stroke machinery of the 70’s.
The 46th edition of the ISDT ran from 20th to 25th September for the second time on the Isle of Man, in fact it was a sign of the changing times with the presence of veterans on the ‘old’ Ducatis and Morinis lined up in the Trophy against the new participants astride the modern 2-stroke KTMs competing for the Silver Vase.
The sections were demanding, a 150 kilometre ring to be run twice a day. Everyone gave their utmost but the greatest success was found by the emerging riders on their KTMs.
In fact, of the seven Ducatis registered, three were awarded gold medals and one silver. Of the eight Morinis, four obtained gold medals. Ten KTMs were registered and won nine gold medals and one silver.
A few days before the event on the 1st September, one of its most famous and loved protagonists, the German Peter Uhlig lost his life following a tragic road accident in Zschopau. This weighed heavily on the entire DDR team.
The czechs on their powerful Jawas took the Trophy with Josef Fojtík, Kvetoslav Masita, Zdeněk Češpiva, Petr Čemus and František Mrázek, followed by the West Germans, and East Germany in third place, 4th was USA, 5th Holland, 6th Sweden, 7th Great Britain and Italy came only 8th. with the Ducatis of Romualdo Consonni, Franco Dall' Ara, Edoardo Dossena, Carlo Rinaldi, Augusto Taiocchi and Fausto Vergani.
Dall’Ara was obliged to retire on the third day and Dossena was disqualified on the fifth day for mounting Dall’Ara’s front tyre.
In the Silver Vase the Czechs did even better, occupying the top two positions, followed by West Germany in third place, and the 4th place was taken by the Italian team, consisting of Elijah Andrioletti, Arnaldo Farioli, Bruno Ferrari and Claudio Tura.
Unfortunately, without wanting to take any credit from anyone, some changes to the regulations were introduced that could have been interpreted in different ways, and this overshadowed both the ethics of the competition and the results of the rankings themselves.