The 2026 Tour de France is doing something that's never been done before: back-to-back summit finishes on Alpe d'Huez. Stage 19, Gap to Alpe d'Huez. Then Stage 20, the queen stage — Le Bourg-d'Oisans up through the Croix de Fer, the Télégraphe, the Galibier at 2,642m, and then Alpe d'Huez again. That Stage 20 route is also the 2026 Étape du Tour. 170.9km. Roughly 5,600m of climbing. The Alpe as the final act.
Whether you're riding the Étape, doing the Marmotte, or just planning a trip to tick off the most famous climb in cycling, this is the guide. Not the history of the 21 bends — that piece already exists. This is the how. How to train for it, how to pace it, how to fuel it, and what most riders get wrong in the first three kilometres.
The Climb: 13.8km of Uneven Truth
The headline numbers — 13.8km, 8.1% average, 1,120m elevation gain, 21 hairpin bends — tell you part of the story. The part they leave out is that 8.1% is a lie in the way averages always lie. The climb has three distinct personalities.
Bottom third (bends 21 to 14, ~0-5km): This is where the Alpe punches you in the mouth. The first 3km ramp immediately to 10-10.5% average, with pitches above 11%. The road winds through forest and the air is heavy. There's no easing in.
Middle third (bends 14 to 7, ~5-10km): The road relents. Averages drop to 7-7.5%. You pass through Huez village. If you paced the bottom correctly, this feels manageable. If you didn't, this is where you're paying the bill.
Final third (bends 7 to 0, ~10-13.8km): It kicks back up. 8-9% through the final hairpins with the ski station visible above. It's just you, the gradient, and whatever you've got left.
That bottom third is the trap. Every time. The adrenaline is high, the gradient is steep, and your brain tells you this effort is fine. It's not. The same pacing mistake that ruins 20-minute local climbs will ruin you here — except here, the consequences last for an hour.
What Power Do You Actually Need?
Let's get specific. Forget the pro times — nobody reading this is riding up in 37 minutes. Here are realistic targets for a 75kg amateur:
3.0 W/kg (225W): You're looking at 65-70 minutes. This is a solid, achievable target for a well-prepared age-group cyclist. You'll be working hard, but you'll finish with your dignity intact.
3.5 W/kg (263W): That brings you down to 55-60 minutes. You're now comfortably in the top half of amateur riders. This takes dedicated training — it's not a casual fitness level.
4.0 W/kg (300W): 48-52 minutes. You're among the strongest amateurs on the mountain. Getting here over 40 requires structured training, good body composition work, and consistent VO2max development.
If you weigh 85kg, those wattage numbers go up by 13%. If you weigh 65kg, they drop. The maths is the maths. Know your number before you start the climb, because guessing leads to one outcome: too hard at the bottom, survival mode at the top.
For a deeper look at what power-to-weight means for climbing and how to improve yours, that article breaks down the five fixable reasons most riders lose time.
Pacing: The Negative Split That Saves You 10 Minutes
Here's what happens to most first-timers. The gradient kicks up out of Le Bourg-d'Oisans. Everyone accelerates. You match them. You're 10-15% above target and it feels fine because your anaerobic system is buffering the cost.
By bend 18, the bill arrives. Power drops. Heart rate stays high. The middle section becomes a death march. The final 3km — where you should be pushing — you're just trying not to stop.
The fix is the negative split. I've covered this in the long climb pacing guide, but here's the Alpe-specific version:
Bends 21-14 (bottom third): 90-95% of your target average power. If your target is 250W for the climb, you're holding 225-237W. RPE 6-7/10. It will feel too easy. Riders will pass you. Let them. You'll see most of them again in the middle section, going backwards.
Bends 14-7 (middle third): Settle at your target power. 250W. RPE 7-8/10. Find your rhythm — cadence, breathing, position. This is where the climb actually happens. The gradient is kinder. Use it.
Bends 7-0 (final third): Spend whatever is left. Push to 105-110% if the legs are there. RPE 9-10/10. The ski station appears above you. This is where restraint in the first third pays off. You have the physiological headroom to push because you didn't burn it at the bottom.
Sir Bradley Wiggins said it about time trialling, but it applies perfectly to a long mountain climb: ride the climb, not the riders around you. Ignore everyone else. Execute your plan.
The Étape du Tour 2026: Everything Changes After the Galibier
If you're riding the Alpe as a standalone — a day trip or a Marmotte — the pacing above is your framework. But if you're riding the 2026 Étape du Tour, the equation changes completely.
The Étape follows the queen stage route: 170.9km from Le Bourg-d'Oisans. Croix de Fer (29km at 5%), descend, Télégraphe (12km at 7%), straight over the Galibier (summit at 2,642m), descend back to the valley, and then — after four or five hours of climbing — you turn right and the Alpe d'Huez road sign appears.
Everything I said about pacing above? Drop every target by 10-15%.
After 5,000m of climbing, your glycogen stores are low regardless of how well you've fuelled. Your threshold power has drifted down 5-10% from the first hour. The Alpe you're riding in hour six is not the same Alpe you'd ride fresh on a Tuesday morning.
Here's the thing — this is where the Étape is won or lost. Not on the Galibier. On the Alpe, in the last hour, when fatigue management separates the riders who prepared from the ones who just trained hard.
Your Étape pacing for the Alpe needs to be:
- Bottom third: 85-90% of your fresh target. Not 90-95%. Lower.
- Middle third: Find whatever is sustainable. Don't chase a number.
- Final third: Give what you have. You'll know by bend 5 whether there's anything left to push with.
The single best thing you can do for your Étape Alpe d'Huez is arrive at the bottom with fuel in the tank. Disciplined pacing on the Galibier. Eating when you don't feel like eating on the descent. Treating the first three climbs as the warm-up act and the Alpe as the performance.
The Training Block: 8-12 Weeks That Prepare You
You need three things to ride Alpe d'Huez well: threshold endurance to sustain 60-75 minutes of climbing power, VO2max capacity to raise the ceiling your threshold sits under, and muscular endurance to keep the pedals turning when the gradient doesn't relent.
Here's how an 8-12 week block breaks down. This assumes you're already riding 8-10 hours per week with a solid zone 2 base.
Weeks 1-4: Build the Engine
- 3-4 zone 2 rides per week. Genuine zone 2 — the kind Prof. Seiler talks about, where a recreational rider could pass you on the bike path. This is 80% of your week.
- 1x sweet spot session: 3x15 minutes at 88-93% FTP, building to 2x20 minutes by week 4.
- 1x long ride: build from 3 hours to 4 hours with at least 30 minutes of sustained climbing.
Weeks 5-8: Sharpen the Top End
- Maintain zone 2 volume.
- Add a VO2max session: 4x4 minutes at 106-120% FTP with 4-minute recoveries. When I had Seiler on the podcast, this was the session he kept coming back to — it raises the ceiling, and when the ceiling goes up, your threshold has room to follow.
- 1x threshold climbing session: the longest sustained climb you can access, ridden at 95-100% FTP. If you're preparing for the Étape, do this at the end of a long ride, not fresh.
- Long ride at 4-5 hours. Back-to-back weekend days at least twice — Saturday 3-4 hours with climbing, Sunday 2-3 hours easy. This builds the fatigue resistance the Étape demands.
Weeks 9-12: Specificity and Taper
- If you can get to the Alps for a recon ride, do it.
- Reduce volume by 20-30% in the final two weeks but keep intensity. Two short, sharp sessions — one sweet spot, one VO2max — with everything else easy.
- The long ride drops to 3 hours. You're not building fitness in the final 10 days. You're absorbing it.
Don't cram in a heroic final week. The fitness you have 10 days out is the fitness you race with. Dan Lorang has talked about this — the work is banked, the taper makes the withdrawal.
Fuelling: You Cannot Under-Eat This Climb
Here's the number: 80-100g of carbohydrates per hour. Minimum. From the start. Not when you feel tired. Not when you bonk. From the first hour.
For a standalone Alpe ride, a single 65-minute effort is manageable with pre-ride fuelling and consistent intake during the climb. Get 60-80g in during the hour and you'll be fine.
For the Étape, the problem multiplies. You're looking at 6-8 hours on the road. The carb-loading protocol starts days before. On race day, you need 80-100g/hour for the full duration. That's 500-800g of carbohydrates.
The biggest mistake I see in sportives is riders who fuel great for three hours and then stop eating because the stomach rebels on the fourth climb. The fix isn't eating less — it's training your gut. Start at 60g/hour in training and build to 90g+ over 6-8 weeks. The fuel-for-the-work approach covers this in detail.
Dan Lorang has been clear on this — the performance difference between a well-fuelled final climb and an under-fuelled one isn't 2%. It's 15-20%. That's the difference between riding the Alpe and surviving it.
Heat: The Variable Nobody Plans For
The Étape is in July. The lower hairpins of Alpe d'Huez sit at around 720m altitude in a valley that traps heat. The road is sheltered by trees, the air doesn't move, and temperatures regularly hit 35-38C at the bottom of the climb.
This matters more than most people think, and it matters more the older you get. Core temperature rises, cardiac output gets diverted to cooling instead of climbing, and your sustainable power drops. A 5% power loss from heat is real and it's on top of the fatigue you've already accumulated.
Three things to plan for:
Pre-cooling: Ice vest in the start area. Frozen bidons in jersey pockets. Anything that lowers your starting core temperature buys you time.
Hydration by schedule, not thirst: Especially over 40, the thirst signal arrives late. Drink 500-750ml per hour with electrolytes. On the Étape, use every feed station.
Expect power to drop: Build 5-10% into your pacing budget for heat. If your fresh Alpe target is 250W, plan for 225-237W on a hot July afternoon after the Galibier. It's not failure. It's physics.
Practical Decisions: Gearing, Position, and the Hairpins
Gearing: 34x34 minimum. If your cassette only goes to 28T, change it before the trip. The first 3km of Alpe d'Huez at 10-11% will have you grinding at 50-55 RPM in a 34x28 at 225W, and that muscular fatigue compounds across the full hour. A 34T cassette lets you spin at 70+ RPM on the steep stuff and save your legs for the sections where power matters. Compact cranks (50/34) are not a compromise — they're the smart choice for any sportive with sustained climbing.
Don't stay seated the whole way: Stand on the steep pitches to shift the muscular load. Sit on the easier middle gradients. Use the hairpin bends as position changes — the gradient eases briefly through every turn, and that's your window to stand, stretch, and reset.
Use the bends as landmarks, not motivation: They're numbered 21 to 0, but the spacing is uneven — the gap between 21 and 18 feels eternal because the gradient is savage. Don't fixate on the numbers. Fix on your power, your cadence, and your breathing.
Reconnaissance if possible: Ride the Alpe at least once before race day. Not at race pace — just ride it. Know where the steep sections hit. Know where Huez village gives you a mental break. Familiarity removes fear, and fear costs watts.
The Bigger Picture
Alpe d'Huez is 13.8km. At 3.0 W/kg, that's about 65 minutes of climbing. In the context of the 2026 Tour de France, the pros will do it twice in two days — and on the queen stage, they'll do it after the Galibier. That's extraordinary.
For the amateur, it's the climb you've watched on television for years. The hairpins. The Dutch corner. The gradient. And now you're on it.
The riders who ride it well train specifically, pace conservatively, and fuel aggressively. The ones who ride it badly attack the bottom, under-eat, and arrive at the ski station having survived rather than performed.
You didn't come all this way to survive.
Build the VO2max ceiling. Do the long rides with back-to-back climbing. Practise eating 90g of carbs an hour until your gut accepts it. And when the road tilts up out of Le Bourg-d'Oisans, hold back. Let the first 3km pass at a pace that feels too easy.
The summit is 13.8km away. You'll get there faster by starting slower.