Explore
Grand Tours
Explore
Grand Tours
173.9 km from Chambery to Voiron with 2,350 m of climbing, measured along the organiser's published course.
| Climb | Category | Summit at | Length | Gradient |
|---|---|---|---|---|
| Côte de Bassa | Category 4 | km 19.0 | 1.6 km | 5.5% |
| Côte de Rossillon | Category 4 | km 35.3 | 1.7 km | 4.6% |
| Col des Près | Category 3 | km 49.3 | 3.6 km | 6.8% |
| Côte de Saint-Jean d'Arvey | Category 4 | km 59.2 | 1.2 km | 5.7% |
The course comes from ASO's own published geometry, the same data that draws the stage map on letour.fr, not from a route planner joining towns. VeloWorkout measures 173.9 km against the 174.7 km the roadbook prints, and 2,350 m of climbing against a published 2,200 m. Elevation is sampled from the Terrarium elevation model and smoothed, so digital-model noise is not counted as climbing.
Waypoint positions agree with ASO's separately published climb positions to a median of 169 m (worst 231 m).