Paso Ratón cycling climb profile
Paso Ratón is a short, controlled Category 4 climb in the US: 3.6 km long, rising from 1815 m to 1960 m for 145 m of net elevation gain. On paper, the 4.01% average gradient makes it look manageable, and for most riders it should ride more like a sustained tempo climb than a pure climbing test.
The key detail is the gap between the average gradient and the maximum gradient of 7.78%. That tells you the climb is not simply a flat, steady drag at four percent. The headline average is forgiving, but the road has enough variation to punish riders who treat the opening as free speed and then meet the steeper ramps already over threshold.
How the gradient rides
With only 3.6 km to cover, Paso Ratón does not give you much time to settle into a long alpine rhythm. The effort is compact enough that stronger riders will be tempted to ride it close to /glossary/ftp from the bottom, but the smarter approach is to respect the sharper sections. A maximum gradient just under 8% is not severe in isolation, but on a short climb it creates the tactical problem: every surge above sustainable power costs more because there is limited distance to recover before the summit.
The average grade suggests much of the climb should feel seated and aerobic, especially if the road alternates between easier pitches and ramps. The practical mistake is using the easier ground to accelerate too hard. On a profile like this, the fastest sustainable ride usually comes from smoothing the power: hold back slightly on the gentler sections, keep pressure on the pedals through the steeper ones, and avoid turning every ramp into a separate attack.
Pacing and gearing notes
For pacing, think controlled build rather than early commitment. The first priority is keeping the opening effort below the level that forces repeated surges later. If riding by power, this is a good climb to anchor around a sustainable climbing effort, then allow short rises above it only when the gradient reaches its steeper pitches. If riding by feel, breathing should be firm but controlled until the final part of the climb.
Gearing does not need to be extreme, but it does need to cover the 7.78% maximum gradient without forcing a low-cadence grind. A standard road setup is likely enough for fit riders, but anyone carrying fatigue, riding heavier equipment, or pacing conservatively should keep an easier gear available. The goal is not simply to survive the steepest ramp. It is to stay efficient enough that the moderate average gradient can work in your favor all the way to 1960 m.
Paso Ratón is ultimately a climb where discipline matters more than heroics. The numbers point to a short, moderate ascent with a few sharper interruptions. Ride those interruptions cleanly, avoid unnecessary spikes, and the climb should reward steady pressure rather than aggression.