Passo del Santellone

Overview

Passo del Santellone is a category 2 climb that stretches across 13.5 km and lifts you from a start elevation of 327 m to a summit of 874 m. That works out to 547 m of net elevation gain, with 538 m of total ascent logged along the way — the near-identical figures tell you this is a road that climbs almost relentlessly upward rather than rolling with big descents. The average gradient of 4.04% keeps it firmly in tempo territory, but a maximum pitch of 11.32% means there is at least one ramp waiting to break your rhythm if you have already emptied the tank.

How the Gradient Unfolds

Do not let the modest 4.04% average lull you into complacency. With a max of 11.32%, the road is roughly 7 percentage points steeper than its average at its cruelest point, which tells you the effort is unevenly distributed. A climb like this typically carries long stretches noticeably below the mean to balance out the steep ramps. Expect false-flat and shallow sections where you can hold good speed, punctuated by sharper kicks. Because the net gain (547 m) and total ascent (538 m) are so close, there is little respite in the form of downhill — the elevation you earn largely stays earned all the way to 874 m.

Pacing Notes

Over 13.5 km, consistency beats heroics. Anchor your effort to a percentage of your FTP and hold it steady through the shallower sections rather than surging. On the 4.04% average, most riders can sit comfortably in a sustainable tempo zone; the discipline is resisting the urge to over-cook the flatter parts and then blowing up on the 11.32% ramp. Save a matchbook of harder efforts for that steepest pitch, then settle back to your target once it eases. If you are unsure what wattage you can actually sustain for a climb of this length, run the numbers through the FTP estimator before you commit to a pacing plan.

Gearing

For a 13.5 km climb topping out at 11.32%, gearing that protects your legs on the steep ramp pays dividends. A compact 34-tooth inner chainring paired with a 34×32 cassette gives most riders a comfortable spin on the average slopes and enough range to survive the 11.32% section without grinding. If you know you fade late in long efforts or prefer a higher cadence on the steep pitch, step up to a 34×34 for extra insurance — the lower ratio lets you keep your legs turning over instead of mashing when the gradient bites near the 874 m summit.

Summary

Passo del Santellone rewards steady pacing and honest gearing. It is a category 2 climb that never gets truly brutal on average, but the 11.32% max demands respect. Ride within yourself, gear low enough to spin the steep bit, and the 547 m of climbing will pass more smoothly than the raw numbers suggest.

Length: 13.5 km
Average gradient: 4.04%
Max gradient: 11.32%
Start: 327 m
Summit: 874 m
Net gain: 547 m
Total ascent: 538 m
Category: 2