The International Six Days Enduro (ISDE) is one of the oldest motorcycle races in the world. Originally called the International Six Days Trials (ISDT), its first race was held at Carlisle, England in August of 1913.
The first ISDT race was open to motorcycles, motorcycles with sidecars, and automobiles. Bikers stationed at the ice rink in Carlisle for inspection by race officials before spending the next six days riding the English countryside.
Riders preparing for the first ISDT race in Carlisle, England [photo:SpeedTrackTales]
The race ran annually except for years caused by global interruptions, mainly World Wars I and II.
The race was held in Europe until 1973. Since then, races were held in the United States, Australia, Brazil, New Zealand, Chile, Mexico, and Spain.
General Race Requirements
The ISDE Comprises six one-day runs with each day equaling a test. Riders must complete all racing days to be considered having finished the race. The distance over the six days can be no less than 1200 km and not more than 1600 km (745–994 miles). It is a test of rider and machine.
The conditions of the race can happen anywhere. These can include deserts, mountainous areas, snow-covered passages or urban areas. Riders contend with the environment as much as they do against each other.
ISDE riders experience challenging terrain over the six day race [photo:Wellard]
National teams are comprised of up to four riders depending on category and must provide identification to verify their nationality.
Riders get no outside assistance. The might have to push their bike at times or make repairs.
In addition to the challenges of riding the ISDE, riders are also confronted with mechanical repairs to their bikes [photo:MCNews]
The race is monitored by time checks. These occur at the beginning and end of the days run. Organizers can also add intermediary checkpoints along the route. These areas are marked on the course map so riders can plan accordingly. The length of the run between time checks can be anywhere from 5 km – 35 km (3–22 miles) in distance.
In addition to the time checks, the ISDE creates different riding “tests.” These tests all come with recommended durations between time checks, but the style of course is different.
- A Cross test uses the natural terrain with no artificial embankments or buildups like you would see in a motocross course. Flat terrain is prohibited.
- The Enduro test provides more challenging riding. Parts of the course could run through streams, rocky passages or up steep hills. All challenges in the Enduro test must be part of the natural landscape with no artificial additions.
- The Final test is held on the last day of the race. Organizers have options. The Final test might be a motorcross race, a race on asphalt, a track or SuperMoto race.
The average speed on any of the tests cannot exceed 50 km/h (31 mph).
Teams and Trophies
Teams consist of national teams, elected by the National Motorcycle Federations (FMN) or organizations with an affiliation with an official FMN. FMNs are continental unions that represent the International Motorcycle Federation or FIM in their respective countries and/or regions.
- FIM World Trophy (Four rider national team elected by FMN)
- FIM Junior World Trophy (Three rider national team elected by FMN)
- FIM Women’s World Trophy (Two to Three rider national team elected by FMN)
- Club Team Award (Three rider club team elected by an affiliate [mc] of an FMN)
- Manufacturers Team Award (Three riders of any nationality elected by a manufacturer)
Each of these teams is further classified in categories. Each rider’s time will added for each class and category to determine overall time. The rider with the total lowest time is placed first and so on.
Awards are based on overall time by class and category, and by team. For team scoring, the times of each team rider are added each day for overall team time.
Categories are structured in the following manner:
- Cat 1: FIM World Trophy and FIM Junior World Trophy
- Cat 2: FIM Women’s World Trophy
- Cat 3: Club team and Individual
Medals are given to individual team riders as well as individual medals for overall best performance.