Cycling Alpe d’Huez from Bourg d’Oisans: Route, Gradients & Descent Options

Alpe d’Huez is one of the most legendary climbs in road cycling, known worldwide for its 21 hairpin bends and its history in the Tour de France and iconic sportives like the Marmotte Granfondo. Starting in Bourg d’Oisans, the climb is a rite of passage for cyclists visiting the French Alps.

Why Ride Alpe d’Huez?

The ascent from Bourg d’Oisans to the official Tour de France finish line at Alpe d’Huez offers a true test of strength, endurance, and pacing. The climb is present on many cyclists’ bucket lists thanks to its challenging gradients, breathtaking views, and its frequent status as a decisive stage in professional cycling.

Essential Route Details

• Distance (one way): 13.8 km
• Start altitude: 740 m
• Highest altitude: 1,850 m
• Height gain: 1,110 m
• Start point: Bourg d’Oisans main street

You will find several bike shops in Bourg d’Oisans for rentals, repairs, or last-minute supplies. For a convenient option, see our recommended bike rental partner Cycles et Sports.

Climb Profile & Gradients

• Average gradient: 8.1%
• Maximum gradient: 13%

The road is well maintained year-round and clearly signposted. Each kilometre marker displays the gradient for the next kilometre and the distance remaining, helping you gauge your effort.

Step-by-Step Route Description

1. Starting out: Leave Bourg d’Oisans on the D211, following signs for Alpe d’Huez. If you’re starting right from town, consider a gentle warm-up spin beforehand.
2. The initial ramps: The first five bends are some of the steepest. Focus on finding a steady cadence as you ascend to La Garde (bend 16).
3. Through the middle section: After La Garde, the gradient eases somewhat, fluctuating between 6.5% and 9% for about 7 km.
4. Huez village and beyond: The pitch increases again after Huez, with stretches between 9% and 11.5% before easing to around 5% for the final 3 km.
5. Reaching the finish: At 1,815 m you’ll see the tourist finish with cafes, shops, and a podium for photos. To reach the official Tour de France finish, continue under the bridge, follow Route de la Signal, turn onto Avenue de l’Etendard, cross one roundabout, then left at the second roundabout up Avenue de Rif Nel. The finish is at 1,850 m.

Descent and Return Options

Once you’ve summited, there are several descent options, each offering a unique experience:

• Col de Sarenne Extension: For extra challenge, continue climbing towards Col de Sarenne (1,999 m), passing Les Bergers and the Altiport. Descend past Le Perron to Mizoën near the Chambon dam, then follow the D1091 or the cycle path along the Romanche river back to Bourg d’Oisans.
• Direct Descent: Simply retrace the D211 back down the 21 bends to Bourg d’Oisans. Take care on hairpins and watch for other road users, especially in summer.
• Villard Reculas Balcony Road: Descend as above until Huez Haut. Turn right onto the D211C and follow signs for Le Pas de la Confession and Villard Reculas. This balcony route offers stunning valley views and less traffic, rejoining the D526 and eventually returning to Bourg d’Oisans via the D1091 or cycle path by the river.

Local Tips

• Each hairpin is numbered with a name plate – keep track of your progress for motivation!
• Cafés and water refills are available at both Huez village and at the summit.
• Always check local conditions or roadworks before your ride, especially early or late in the season.
• Consider booking your stay or a post-ride treat at Chalet le Camigane or explore other accommodation options nearby.

If you’re planning your cycling holiday in the Alps and need a reliable transfer for you and your bike to Bourg d’Oisans or Alpe d’Huez, contact Alp Venture to ensure a smooth start to your adventure.