Speaking to Eurosport ahead of the stage, the two-time Tour de France winner highlighted the exposed approach to Ventoux, where crosswinds can leave riders fighting for position and already riding close to their limit before the road begins climbing properly.
“The first eight kilometres are extremely hard”
“The seven or eight kilometres beforehand are extremely hard because sometimes the peloton is completely strung out in the gutter because of the wind,” Contador explained. “I remember on some occasions at the Dauphine or the Tour de France arriving at the start of the climb already at 180 or 190 beats per minute purely from the approach.”
There is little respite once the riders reach the official beginning of Mont Ventoux. “You pass the banner marking the official start of the climb and immediately the road settles into sustained gradients of nine or ten per cent,” Contador said.
Unlike climbs broken up by hairpins or short sections of easier road, the forested lower slopes of Ventoux provide few obvious places to recover. The road points relentlessly upwards and, according to Contador, riders can physically watch the race disappearing ahead of them once they begin to struggle.
“There are no big bends in the first part and you can see the group gradually disappearing away from you,” he explained. “The first eight kilometres are extremely hard.”
That section could be particularly important for Reusser. The yellow jersey impressed by matching repeated accelerations from Vollering on the shorter and steeper Mont Brouilly on Stage 5, but Ventoux presents a very different test, with a long sustained effort likely to expose even relatively small differences between the leading climbers.
Marlen Reusser will defend the Maillot Jaune on Mont Ventoux
Wind adds another variable above the trees
The nature of Ventoux changes once the race leaves the forest and reaches the exposed upper slopes that give the mountain its unmistakable appearance.
By that stage, Contador believes surviving the earlier attacks can become almost as important as launching one. “When the wooded section ends and you enter the windy area, if you have managed to survive your rivals' attacks, you can shelter in the wheel and perhaps save your day,” he said.
The gradient eases slightly higher up the mountain, but the lack of shelter leaves riders increasingly exposed to the weather. “You reach the lunar terrain with better asphalt, where it is easier to pedal and the gradient is lower, around seven per cent,” Contador explained.
The famous final approach towards the antenna then provides one last opportunity for gaps to open before the summit. “It is a climb that makes the difference and it is unlike any other,” Contador concluded.
Reusser has successfully defended yellow through two demanding road stages since winning the Dijon time trial, while Vollering has repeatedly tested her without yet managing to dislodge the Swiss rider. Niewiadoma-Phinney also looked among the strongest climbers on Stage 5, and Longo Borghini recovered 30 seconds on the leading GC trio through an aggressive Stage 6.
Mont Ventoux offers considerably less room for tactical hiding. Before the favourites can begin fighting their way towards its iconic summit, however, Contador expects the battle for position on the exposed roads below to have already taken its toll.