Crespëina saddle

Overview

Crespëina saddle is a genuine hors catégorie (HC) test, the hardest classification a climb can carry. It runs for 36.9 km, lifting you from a valley floor at 545 m all the way to a 2490 m summit. That is 1945 m of net elevation gain, with 1935 m of total ascent packed into the ride. The average gradient of 5.27% sounds moderate on paper, but at nearly 37 km long that figure hides a huge amount of vertical work — and a savage 29.22% maximum pitch that reshapes any sensible pacing plan.

How the Gradient Unfolds

The headline number to respect here is the gap between the 5.27% average and the 29.22% max. A climb this long with a gentle mean gradient is almost never uniform; the presence of a near-30% ramp tells you the road stacks its difficulty into short, brutal pitches separated by easier drags. Expect long stretches well below 5.27% where you can breathe and roll, punctuated by walls that spike toward that 29.22% ceiling. The near-identical net gain (1945 m) and total ascent (1935 m) confirm the road climbs almost relentlessly upward with very little descending to give the gained metres back — you keep essentially everything you earn.

Pacing Notes

Over 36.9 km, discipline beats bravado. Your FTP is the anchor for the sustained sections: settle into a rhythm you can hold for well over an hour, because at nearly 37 km this is an endurance effort first and a power effort second. Save your matches for the steep ramps toward 29.22%, where staying seated and spinning is often impossible and you will briefly need to punch well above threshold. If you are unsure what number to hold on the long 5.27% drags, run your figures through the FTP estimator before you commit to the bottom of a 1945 m climb. Go out too hard in the first third and the final metres to 2490 m will be miserable; the thin air near the summit only compounds the fatigue.

Gearing

Gear for the walls, not the average. The 5.27% mean is comfortable on almost any setup, but the 29.22% maximum demands the lowest ratio you can practically fit. A compact 34-tooth chainring paired with a 34×32 cassette is the sensible minimum for most riders tackling a 1945 m HC climb. If you have the range, go further to 34×34 — that extra sprocket is exactly what keeps your cadence alive on the steepest ramps and protects your knees across the full 36.9 km. On a climb this long, spinning a low gear is always cheaper than grinding a big one.

Summary

Crespëina saddle earns its HC status through sheer scale: nearly 37 km of climbing, close to 2000 m of ascent, and a max pitch that borders on unrideable. Pace the long 5.27% sections conservatively, gear low for the 29.22% walls, and respect the altitude as you close on 2490 m.

Length: 36.9 km
Average gradient: 5.27%
Max gradient: 29.22%
Start: 545 m
Summit: 2490 m
Net gain: 1945 m
Total ascent: 1935 m
Category: HC