Coll del Sant Crist

Overview

The Coll del Sant Crist is a genuine hors-catégorie test, the kind of climb that rewards patience and punishes ego. Over 20.4 km it lifts you from a start elevation of 461 m to a summit of 1891 m, a net gain of 1430 m. The average gradient sits at 7.03%, which sounds civilized on paper but adds up to an unbroken, hour-plus effort for most riders. This is not a punchy wall you can muscle over — it is a long, sustained ascent where the total ascent of 1495 m tells you the road never truly lets you coast. Earning the HC label, the hardest category above 1, 2, 3, and 4, it belongs in the same conversation as the biggest passes you can ride.

How the Gradient Unfolds

With 20.4 km of climbing and 1430 m of net gain against 1495 m of total ascent, the difference — 65 m — reveals only the slightest respite along the way. In practice that means the Sant Crist climbs almost every single kilometre. The 7.03% average is remarkably consistent for a climb this long, so rather than dramatic ramps and false flats, expect a road that keeps its head down and pulls steadily upward. The final push toward 1891 m is where the thin air and accumulated fatigue conspire against you; the gradient may not spike, but at that altitude and after that much vertical, it feels like it does. Treat the whole ascent as one continuous block rather than a series of sections.

Pacing Notes

On a climb of this length, discipline beats enthusiasm. Aim to settle just below your threshold and hold it — the FTP that matters here is the wattage you can sustain for the full duration, not a five-minute best. Because 20.4 km at 7.03% will keep you working for well over an hour, riding even slightly above sustainable power early will cost you dearly across the back half. If you are unsure where your ceiling sits, run the numbers through the FTP estimator before you commit to a pace. The golden rule: the summit at 1891 m is a long way off, so start conservatively and let the climb come to you.

Gearing

Do not under-gear this one. For a 20.4 km climb averaging 7.03% and gaining 1430 m, you want a wide range that lets you spin rather than grind. A compact 34-tooth chainring paired with a 34×32 cassette is a sensible baseline for strong climbers, but most riders will thank themselves for going to a 34×34 to keep cadence up over the long haul. Preserving your legs early with an easier gear is exactly how you avoid blowing up before the 1891 m summit. When in doubt, choose the larger sprocket.

Summary

The Coll del Sant Crist is a patient rider's climb: long, steady, and unforgiving of poor pacing. Gear low, hold your threshold, and respect the full 1430 m of vertical you are signing up for.

Length: 20.4 km
Average gradient: 7.03%
Max gradient: n/a
Start: 461 m
Summit: 1891 m
Net gain: 1430 m
Total ascent: 1495 m
Category: HC