Colle di Palombaia

Overview

Colle di Palombaia is a compact, honest climb: 2.2 km of road that lifts you from a start elevation of 18 m to a summit of 152 m. That is a net elevation gain of 134 m over the ascent, delivered at an average gradient of 6.09%. It carries a category 4 rating, the gentlest of the classified tiers below categories 3, 2, 1 and the hors catégorie giants, which tells you exactly what to expect: a climb you can attack rather than survive.

At just over two kilometres, this is a punchy effort rather than an endurance test. The numbers describe a slope that stays close to its average the whole way up, with a max gradient of 6.7% that never lets the road tip into leg-breaking territory. It is the kind of climb where consistency beats bravado.

How the Gradient Unfolds

The defining feature here is uniformity. With an average of 6.09% and a maximum of only 6.7%, the spread between the typical slope and the steepest pitch is barely half a percent. There are no cruel ramps waiting to ambush you and no flat recovery sections to break the rhythm — just a steady, predictable gradient from bottom to top.

That tight band between average and max makes Palombaia unusually readable. Once you settle into the opening ramp, the effort you feel in the first few hundred metres is very close to the effort you will feel near the summit. The road holds its pitch, so the climb rewards a rider who can lock into a single sustainable cadence and hold it.

Pacing Notes

Because the gradient is so even, this is a climb best paced by feel and power rather than by fear of what is around the corner. Aim to ride the whole 2.2 km at or slightly below your threshold. If you know your FTP, a category 4 effort this short can be ridden a touch above it for a strong rider, but going into the red early on such a consistent slope leaves nowhere to hide across the back half.

Not sure where your threshold sits? Run the numbers through the FTP estimator before you plan your effort. With only 134 m of climbing to distribute, the smart move is a firm, even push from the base — the road will not give you a steeper section to save yourself for, so there is no reason to hold back a hidden reserve.

Gearing

For a climb topping out at 6.7% and averaging 6.09%, most riders will be comfortable on standard road gearing. A compact chainset paired with a 34×32 bottom gear gives you plenty of room to spin the steady slope without grinding. That combination keeps your cadence high and your legs fresh across the full 2.2 km.

If you prefer to sit and spin, or you are carrying fatigue from earlier climbing, a 34×34 adds a little extra cushion for the max pitches without any downside on a slope this moderate. Either way, you should rarely need your easiest sprocket — the gradient simply never demands it.

Summary

Colle di Palombaia is a clean, category 4 climb that pays off good pacing and steady legs. Its even gradient and short length make it an ideal effort to ride at threshold from the base, with no surprises hiding above.

Length: 2.2 km
Average gradient: 6.09%
Max gradient: 6.7%
Start: 18 m
Summit: 152 m
Net gain: 134 m
Total ascent: 109 m
Category: 4