col de la Croix de Boutières

What to Expect From Col de la Croix de Boutières

The Col de la Croix de Boutières is a category 1 climb in France, and the numbers justify that rating immediately. Ten kilometres of road rise 1,053 metres in total ascent from a start elevation of 787 m to a summit at 1,514 m. That gives an average gradient of 7.29% — sustained, honest climbing with no significant flat recovery sections to reset the legs.

The headline number to respect is the 18.75% maximum gradient. A ramp of that severity is not a momentary kicker; it demands serious attention on your FTP and gearing strategy before you leave the car park.

How the Gradient Unfolds

An average of 7.29% over 10 km means you're dealing with a climb that is consistently hard rather than one that hides its difficulty behind a mellow lower half. With a maximum of 18.75%, the road does contain at least one section that more than doubles the average — expect the gradient to shift noticeably at some point rather than sit at a steady 7–8% throughout.

Key gradient characteristics:

• Average gradient: 7.29% — demanding enough that you cannot switch off at any point
• Maximum gradient: 18.75% — well above double the average, signalling a concentrated, very steep ramp somewhere on the road
• Total ascent: 1,053 m over 10 km — this is a significant vertical effort comparable to major European cols
• Category: 1 — the second-highest classification in road cycling, reflecting the full weight of the effort required

Pacing Notes

With 10 km and over 1,000 m of climbing, pacing discipline is the difference between a controlled effort and an early blow-up.

Start conservatively. The average gradient means the road is working against you from the first pedal stroke. Riders who go out at threshold or above on a 10 km category 1 climb with 1,053 m of ascent pay for it in the final kilometres. Aim for a sustainable effort in the 75–85% of FTP range on the lower slopes. Use the FTP estimator if you need a baseline power target before the ride.

Anticipate the steep ramp. When the gradient spikes toward 18.75%, switch to your lowest available gear before the pitch fully hits — not halfway up it. Standing is an option but burns considerably more energy; use it in short bursts to protect your seated power for the remainder of the climb.

Gearing. On a climb where the max exceeds 18%, a compact chainset (50/34) paired with an 11-32 or 11-34 cassette gives you options. A mid-compact (52/36) with a 32-tooth sprocket is viable for riders with stronger climbing legs, but leave nothing to chance on a cat-1 ascent with 1,053 m of total gain.

Manage the final kilometres. After any very steep ramp, resist the temptation to accelerate hard just because the gradient eases. With 1,053 m of ascent in the legs, the road from 787 m to 1,514 m asks for consistent output, not surges. Keep power steady and save a controlled push for the last 1–2 km once the summit is genuinely in range.

Summary at a Glance

The Col de la Croix de Boutières rewards riders who respect its sustained nature and plan for that steep maximum ramp rather than being caught off guard by it.