Passo del Redebus

Passo del Redebus cycling climb profile

Passo del Redebus is a Category 1 climb in Italy that asks for patience more than aggression. On paper, the headline is a 19.6 km climb averaging 5.38%, rising from 398 m to 1455 m for 1057 m of net elevation gain. That combination matters: this is not a short wall where you can bluff your way through on momentum. It is a long aerobic effort where small pacing mistakes compound.

The average gradient is moderate, but the max gradient of 13% changes how the climb should be read. A climb with this length and this average is rarely hard because every metre is brutally steep. It is hard because the sustainable sections keep you under load for a long time, then the steeper pitches force repeated surges if you have over-geared or started too hot.

How the gradient rides

With the available profile data, the safest interpretation is that Passo del Redebus is a sustained climb with meaningful variation rather than a perfectly even tempo road. The 5.38% average tells you the baseline demand is steady endurance climbing. The 13% maximum tells you there are ramps steep enough to disrupt rhythm, especially if you are already riding near threshold.

That makes the climb more tactical than the average gradient suggests. The danger is not one isolated steep section. The danger is treating the early and middle kilometres like a comfortable tempo climb, then finding that the steeper pitches require torque you no longer have. If the climb is ridden well, it should feel controlled for a long time, with the hardest sensations arriving only once fatigue and gradient overlap.

Pacing strategy

Start below the effort you think you can hold. On a 19.6 km climb, the cost of going too hard early is much higher than the reward. The first objective is to keep breathing and cadence stable, even if the gradient feels manageable.

A sensible structure is:

• Settle into endurance to steady tempo early, not threshold
• Let speed vary with the road instead of forcing a target pace
• Keep something in reserve for the 13% ramps
• Use the final portion only if the legs are still responding

If you pace by power, this is a climb where /glossary/ftp discipline matters. The steepest pitches may pull you above target, but they should be brief corrections, not the default way of riding the climb. If you ride by feel, keep the effort conversational early, controlled through the middle, and only commit fully once the summit is realistically close.

Gearing notes

Choose gearing for the maximum gradient, not the average. The 5.38% average can make the climb look friendly, but the 13% ramps are where cadence can collapse. A compact-style setup or a proper climbing cassette is the safer choice for most riders, particularly if the climb comes after prior fatigue.

The goal is not just to get over the steepest section. It is to stay seated, preserve traction, and avoid burning matches through low-cadence grinding. If your easiest gear lets you keep a smooth cadence on the steep ramps, the rest of the climb becomes much easier to manage.

Bottom line

Passo del Redebus is a long, controlled climbing effort with enough steepness to punish impatience. Respect the distance, gear for the ramps, and ride the average gradient as a guide to duration rather than difficulty. The riders who go best here will be the ones who keep the first half boring and arrive at the harder moments with options still available.