Col de Vizzavona

Col de Vizzavona Cycling Climb

Col de Vizzavona sits in the heart of Corsica, a Category 2 climb that earns its rating through a combination of consistent gradient and one genuinely savage ramp. The numbers are deceptively moderate on paper — 7.5 km at 6.85% average — but that average conceals a maximum gradient of 22.04%, which ranks it among the steeper single pitches you will encounter on any French pass.

The climb begins at 630 m elevation and gains 838 m of total ascent to reach the summit, a vertical haul that demands respect from the first pedal stroke.

How the Gradient Unfolds

The lower slopes come out of the valley at a manageable pace. The road through the forest is rarely flat, but the early kilometres reward a controlled effort. Think of this section as the climb giving you a chance to settle your breathing and dial in your cadence before things get serious.

The middle section is where the average gradient of 6.85% is most representative — sustained, honest climbing that requires steady power output without any meaningful respite. Riders who attack here tend to pay for it later.

The upper section delivers the climb's defining characteristic: a pitch that reaches 22.04% at its steepest. This is not a momentary kicker — it demands full commitment. Anyone who has arrived at this ramp with already-depleted legs will know what it means to manage a climb poorly from the bottom.

Pacing Notes

• Start conservatively. With 838 m of total ascent packed into 7.5 km, average power targets should be set below what feels comfortable at the base. The 22% ramp will collect any debt you run up early.
• Know your FTP number before you go. A climb of this profile rewards riders who have a precise sense of their sustainable power. If you haven't tested recently, use the FTP estimator to get a working figure before setting targets.
• Cadence management matters. The steep upper pitch will force many riders toward very low cadences if they run out of gears. Grinding a 22% gradient at 50 rpm is a fast route to muscular failure.

Gearing Recommendations

Do not underestimate the top section. A compact chainset (50/34) paired with an 11-32 or 11-34 cassette is a sensible baseline. Riders who plan to push hard from the bottom and still have something left for the steep upper ramp should lean toward the wider cassette range.

If you are running a 1x drivetrain, a 32 or 34-tooth chainring with a wide-range cassette (10-42 or 10-46) keeps options open on the 22% pitch without forcing a halt.

The Bigger Picture

Col de Vizzavona is a Category 2 climb that functions like a Category 1 in its final third. The average gradient of 6.85% over 7.5 km places it in familiar territory for riders with solid base fitness, but the 22.04% maximum means finishing strongly requires both good legs and good judgement earlier on the road. Ride the first two-thirds within yourself, and the summit becomes achievable at pace. Overcook the approach, and Vizzavona will make the lesson memorable.