Pacing an 11-day gravel cycling tour across the Pyrenees

Ask anyone who has ridden the Trans Pyrenees — our Pyrenees cycling tour from San Sebastián to the Mediterranean — which day broke them, and most won’t say day seven. They’ll say day eight — the long one, the 118 km one, the one that comes straight after the hardest climbing day of the week with no rest in between. Day seven gets the reputation and the 2,900 metres. Day eight gets the riders who paced day seven as if it were the only test on the exam.

That pairing — the hardest stage immediately followed by the longest — is the real shape of an 11-day gravel cycling tour across the Pyrenees, and it’s the thing that actually decides how your week goes. Not your FTP, not your bike, not even your base fitness, assuming you have enough of it to be here at all. Pacing. Specifically, knowing where in eleven days to spend effort and where to hold it back, so that the two biggest days — buried deliberately in the middle of the route, right after the only rest day — don’t take more than they need to.

What eleven days on the Trans Pyrenees actually asks

The Trans Pyrenees Gravel tour runs San Sebastián on the Atlantic to Sant Pere Pescador on the Mediterranean: eleven days, 780 km, eight riding stages, one rest day, and 17,000 to 20,000 metres of cumulative climbing. It’s our longest and hardest route, run as a single demanding level rather than the gentler-and-harder split we offer on shorter tours — everyone on this one, guided or self-guided, rides the same line.

Laid out stage by stage, the week looks like this:

• Day 2 — San Sebastián → Elizondo: 85 km, 2,500 m
• Day 3 — Elizondo → Isaba: 90 km, 2,600 m (with a brief stretch into France and back)
• Day 4 — Isaba → Jaca: 85 km, 2,095 m
• Day 5 — Jaca → Aínsa: 86 km, 1,750 m
• Day 6 — Rest day in Aínsa
• Day 7 — Aínsa → El Pont de Suert: 96 km, 2,900 m — the hardest stage
• Day 8 — El Pont de Suert → La Seu d’Urgell: 118 km, 2,000 m — the longest stage
• Day 9 — La Seu d’Urgell → Ripoll: 99 km, 2,100 m
• Day 10 — Ripoll → Sant Pere Pescador: 109 km, 1,200 m

Read that as a shape rather than a list and one thing jumps out immediately: the week’s two biggest tests, by two different measures, sit next to each other, right after the only day off. That’s not an accident of geography — the terrain genuinely asks for it in that order — but it means the rest day in Aínsa isn’t just a nice pause in a long trip. It’s the hinge the whole week turns on.

The back-to-back that defines the trip

Day seven is the one riders brace for. Aínsa to El Pont de Suert climbs 2,900 metres over 96 km — one of the longest single climbs of the entire route, changing terrain as it goes, with bigger views the higher you get and the sense of riding close to the highest peaks in the range, the Monte Perdido massif and the limestone walls of Ordesa somewhere off to the north. At 2,900 m it is, on paper and in practice, the single biggest climbing day of the week. It comes on legs that the rest day has, in theory, restored.

Day eight is the one riders underestimate. El Pont de Suert to La Seu d’Urgell is 118 km — the longest stage on the route by distance — but it carries 2,000 m of climbing against day seven’s 2,900 m, and the profile is kinder: long descents and easier road sections that keep the momentum going between the climbs rather than one continuous fight uphill. Taken in isolation, it’s a manageable day. Taken the morning after day seven, on legs that spent everything the day before, it becomes something else entirely.

This is the pairing that actually tests a rider on this route, more than either stage does alone. The mistake we see most often — guided and self-guided riders alike — is treating day seven as the whole exam and day eight as a formality afterwards, a let-down day because the climbing number is lower. It isn’t a let-down day. It’s a 118 km day on legs that climbed 2,900 metres yesterday, and distance on tired legs has a way of feeling considerably longer than the number on the route sheet suggests.

How to actually pace this pair

Three decisions, made in order, make the difference between riding this pair well and surviving it.

First: don’t spend the rest day being a tourist with your legs. Aínsa is genuinely one of the loveliest towns on the route — a near-perfect medieval hill town, an arcaded plaza, a spa worth using properly. The guide may offer a short voluntary bonus ride depending on weather and the group’s energy. Take the rest day for what it’s built to do: let the body absorb the first five days (already 8,945 m of climbing by the time you arrive) and arrive at breakfast on day seven with something in reserve. A long afternoon on your feet exploring the old town is not free recovery, however much it feels like one. Sitting still, eating properly, and sleeping are what actually matter here.

Second: on day seven, ride it as the day it is — not as a day to be economical for day eight’s sake. This sounds counter-intuitive, and it’s the detail that catches people out. There is no version of day eight that is easier because you rode day seven conservatively; the 2,900 m still has to go into your legs one way or another, over roughly the same number of hours either way. What conservative riding on day seven actually buys you is finishing later, tireder, and later to dinner — which is the opposite of what day eight needs. Ride day seven at the effort it deserves, fuel properly through it, and get to El Pont de Suert with enough evening left to eat well and sleep properly.

Third: ride day eight by rhythm, not by the climbing total. The lower elevation figure on paper (2,000 m against day seven’s 2,900 m) tempts riders into treating it as the easy one and pushing the pace early, on the logic that there’s less climbing to save legs for. The actual demand of day eight is distance and duration — 118 km is a long time in the saddle regardless of how much of it climbs — so the right approach is a settled, sustainable rhythm from the first kilometre: steady on the long descents, patient on the climbs, and disciplined about not racing the easier road sections just because they feel like recovery. They aren’t recovery. They’re still part of a 118 km day.

Where the rest of the week fits around this pair

None of this works if the four stages before Aínsa have already spent your legs. Days two through five carry real climbing of their own — 2,500 m, 2,600 m, 2,095 m and 1,750 m, a cumulative 8,945 metres before you reach the rest day at all. The route opens in the Basque hills, steep and wooded and often wet underfoot, with day three’s climb into Isaba touching briefly into France and back before the terrain starts to dry out and open up through Jaca and into the Zona Zero gravel country around Aínsa. Riders who treat these four days as a prologue to be got through quickly, rather than genuine climbing days in their own right, tend to arrive at Aínsa already in debt — and a rest day repays travel fatigue reasonably well, but it does not fully repay four days of overcooked effort.

The same logic runs the other way through days nine and ten. By La Seu d’Urgell to Ripoll (99 km, 2,100 m) and Ripoll to Sant Pere Pescador (109 km, 1,200 m), the Mediterranean is close enough that riders start to feel the finish line, and that feeling causes a specific, predictable mistake: pushing stages that don’t need pushing, because the sea is nearly visible and the legs suddenly feel lighter than they have all week. Day nine in particular is still a genuine mountain day — one of the most iconic up-and-down stretches on the route, with real climbing high in the mountains even as the country starts to turn Catalan and dry. Pace it as the mountain day it is, and save the sense of arrival for the actual descent into Sant Pere Pescador on day ten, where it belongs.

What pacing actually looks like, hour to hour

Away from the stage-by-stage shape, a few habits make the biggest practical difference on a route this size:

• Fuel before the climbing starts, not during it. On a day like day seven, waiting until you feel the first signs of running low means you’re already behind — recover from a deficit on a 2,900 m day and you lose far more time than the minutes it takes to eat properly beforehand.
• Use the lunch stop at the van as a reset, not a formality. The support vehicle meets the group most days at lunch, where you can change kit and refill the PurePower energy drink for free, with bars and chews available to buy. On the two biggest days especially, treat this stop as a genuine pause — eat real food, sit down if you can, and leave it with a plan for the second half rather than just a top-up.
• Dress for the ridge, not the valley you set out from. Temperatures swing hard between the valley floors and the high passes throughout this route, and a packable layer costs nothing in a jersey pocket but solves a real problem on an exposed col an hour from any shelter.
• Sleep is part of the pacing plan, not a reward for finishing it. The evening after day seven matters as much as the morning of day eight. Eat, hydrate, and get to bed — the recovery that makes day eight manageable happens in those hours, not on the bike the next morning.
• Know that pacing wrong is recoverable, not fatal. The support vehicle carries spares, a spare bike and a clothing bag, and follows the route every day. If a stage runs longer than your legs wanted, that’s a logistics problem we’re set up to solve, not a crisis to manage alone.

Guided or self-guided, the pacing decision is yours either way

On the guided option, an experienced English-speaking guide leads each stage and handles the navigation — useful on the exposed ridgelines above 1,000 m, where a wrong junction on tired legs costs real time. Guided groups run eight to ten riders per guide, deliberately smaller than most of our other tours, because good pacing on terrain like this benefits from a manageable group size. On the self-guided option, the full GPS route for Garmin, Wahoo and Komoot lets you ride entirely at your own pace, which has its own advantage on a pair of stages like seven and eight: nobody else’s rhythm to match, just your own plan for where to spend the effort. The support vehicle, the luggage transfer and the daily briefing are identical either way. For more on how the two models actually work day to day, see how our tours work.

Whichever way you ride, the levels page sets out how we grade the difficulty across the whole programme — and the Trans Pyrenees sits firmly at the demanding end of it, which is exactly why pacing matters here more than on a gentler route.

What a supported Trans Pyrenees week includes

Ten nights in hotels and mountain refuges chosen for location, ten breakfasts and four dinners including the closing dinner on the Bay of Roses, and eight riding stages plus the option of a short bonus ride on the rest day in Aínsa. Experienced, English-speaking guides give a daily evening briefing with maps and elevation profiles, so you know exactly what the next day is asking before you ride it — useful preparation for a pair of stages like seven and eight. A support vehicle carries spares, a spare bike and a clothing bag, with mechanic help from the crew and spare parts at cost, and luggage moves hotel to hotel so you collect your bag on arrival rather than carrying it. The full itinerary, the 2027 and 2028 departure dates and everything included in full are on the Trans Pyrenees Gravel tour page.

If you want the whole crossing laid out stage by stage, start to finish, our route guide — San Sebastián to Sant Pere Pescador: crossing the Pyrenees — covers the landscape and the day-by-day detail this piece deliberately skips over in favour of the pacing question. And for the broader habits that make any multi-day tour easier on the body, not just this one, see how to prepare for a gravel cycling tour.

The honest version

Eleven days, 780 km, somewhere between 17,000 and 20,000 metres of climbing, and a week whose real test isn’t any single number on that list — it’s a pair of consecutive days, buried deliberately after the only rest you get, that ask you to spend hard on one and settle into a long rhythm on the next. Get that pair right and the rest of the route, genuinely demanding as it is, falls into a rhythm you can sustain. Get it wrong and you’ll spend day nine and ten simply getting to the sea rather than arriving at it properly.

We ride this exact pair every September on the Trans Pyrenees Gravel crossing — guided or self-guided, with the rest day in Aínsa positioned exactly where it needs to be, and the support van somewhere on the valley road below you on both of the big days.