Los Ajos is a climb of 11.9 kilometers (category 1). Los Ajos tops out at 3,170 m above sea level. It is located in Perímetro Urbano Pasto, Nariño, Colombia. The average gradient is 5.3% with a maximum of 12.9%. The climb has 633 meters of elevation gain.
Difficulty analysis: This 1st category climb is genuinely hard, with a demanding finish. The average gradient of 5.3% looks moderate, but the profile reveals two key sections: km 8-9 (8%) and the final 11-11.9 (8%), the latter being especially steep after 11 km of effort.
Pacing advice:
1. Settle into a rhythm early: The first 7 km (5-6% gradient) are the place to find a steady tempo without burning matches.
2. Plan for the two 8% ramps: Save something for km 8-9 and the final. Ease off the pace slightly before these sections so you hit them with fresh legs.
3. Make the most of the breather at km 9-10: The 3% section after the first 8% is a crucial chance to recover and prepare for the finale.
11.9 km • 633 m D+
VAM: average climbing speed, based on elevation gain
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