Colle di Dentro

Colle di Dentro cycling climb profile

Colle di Dentro is a short category 4 climb that asks for control more than survival. At 1.4 km with an average gradient of 5.19%, it is not long enough to require a full climbing reset, but it is steep enough that riding it lazily in the wrong gear will cost momentum quickly.

The key detail is how narrow the gradient range is. The climb averages 5.19% and only reaches a maximum of 5.61%, which points to a very steady profile rather than a climb defined by ramps, recoveries, or abrupt changes in rhythm. From a pacing perspective, that makes it predictable. There is little evidence in the numbers for a decisive wall or a section where you need to burn a match just to stay on top of the gear.

How the gradient unfolds

The road rises from 970 m to 1,043 m, gaining 73 m from bottom to summit. Over just 1.4 km, that gain comes steadily. The average and maximum gradients sit close together, so the climb should feel like a continuous drag rather than a stepped ascent.

That matters tactically. On climbs with bigger gradient swings, the best pacing often means absorbing steep sections and recovering when the road eases. Colle di Dentro gives fewer obvious places to hide. The efficient ride is likely the boring one: settle early, keep pressure smooth, and avoid surging above threshold unless the climb is part of an interval or a race move.

Pacing and gearing notes

Because the climb is short, many riders will be tempted to attack it from the base. That can work if the effort is intentional, but the steady 5% range punishes over-gearing more than it punishes patience. If cadence drops too early, the summit arrives after enough time for the initial acceleration to fade.

For a controlled ascent, ride the opening section just under your target climbing effort, then let the gradient pull you into rhythm. If using power, this is a good climb to anchor around FTP or slightly above it depending on freshness and the session goal. The limited maximum gradient means there is no obvious need for an emergency gear, but you still want a ratio that lets you keep cadence smooth without grinding.

For training, Colle di Dentro suits short aerobic climbing efforts, controlled threshold work, or repeated hill intervals where consistency matters. Its main challenge is not severity. It is execution: holding a clean, even effort from 970 m to the 1,043 m summit without turning a manageable category 4 ascent into an inefficient stop-start effort.