Cime de Tavels

Overview

Cime de Tavels is a genuine hors catégorie test, the kind of climb that rewards patience over pride. Over 28.3 km the road climbs from a start elevation of 808 m to a summit at 2597 m, a net gain of 1789 m. The average gradient reads 6.33%, a number that sounds almost civilised until you register how long you hold it. This is not a short, savage wall you can muscle through — it is a sustained, high-altitude haul that asks you to keep producing power for well over an hour, then keep producing it as the air thins toward 2597 m.

How the Gradient Unfolds

The headline 6.33% average hides real variation. Total ascent measures 1992 m against a net gain of 1789 m, meaning roughly 203 m of extra climbing is stitched in through rolling sections, dips, and false flats that repeatedly break your rhythm. The sting in the tail is a maximum gradient of 22.87% — more than three and a half times the average. A ramp that steep is a different discipline entirely: it forces you out of the saddle and can spike your effort far above anything sustainable. Treat those pitches as isolated surges to survive, not efforts to conquer, and settle straight back into your climbing cadence once the road tilts back toward the average.

Pacing Notes

On a climb this long, pacing is everything. Anchor your effort to a percentage of your FTP rather than to how you feel in the first few kilometres — early legs lie, and 28.3 km is more than enough road to punish an overcooked start. A steady sub-threshold effort will carry you far further than repeated matches burned on every rise. If you are not sure what your threshold is, run the numbers through the FTP estimator before you go, then hold a touch below it on the sustained slopes so you keep something in reserve for the 22.87% ramps and the thin air near the 2597 m summit.

Gearing

Gear for the steep ramps, not the average. On a 6.33% climb with pitches touching 22.87% and altitude sapping your power near the top, a compact crankset with a wide-range cassette is the sensible baseline. A 34×32 will get most fit riders up the sustained sections, but for the 22.87% pitches — and for keeping your cadence alive across 28.3 km of accumulated fatigue — a 34×34 gives you meaningful breathing room. If your bike accepts it, the lower gear is cheap insurance: spinning a slightly easier ratio costs you nothing on the shallower slopes and saves your legs when the road stands up.

Summary

Cime de Tavels is a long, honest HC climb: manageable on average, brutal in its steepest moments, and demanding across its full length to a high summit. Pace it conservatively, gear it generously, and respect the altitude.

Length: 28.3 km
Average gradient: 6.33%
Max gradient: 22.87%
Start: 808 m
Summit: 2597 m
Net gain: 1789 m
Total ascent: 1992 m
Category: HC