Buenos Aires is a climb of 20.4 kilometers (hors catégorie). Buenos Aires tops out at 1,934 m above sea level. It is located in Mazapa de Madero, Chiapas, México. The average gradient is 5.8% with a maximum of 19.4%. The climb has 1179 meters of elevation gain.
Difficulty breakdown: This 20.4 km climb with 1179 m of elevation gain averages 5.8%, which makes it a serious col. The start is relatively rolling, with a false flat at km 1-2 followed by a descent at km 2-3. The second half gets noticeably harder, and the block from km 13 to km 19 holds most of the difficulty, with gradients of 9%, 16%, 10%, 8% and 11%. The km 14-15 section, at 16%, will be the hardest part of the climb.
Pacing tips:
1. Save your legs from the bottom. Tackle km 0-1 at 5% with a controlled effort, then use the false flat at km 1-2 and the descent at km 2-3 to recover.
2. Prepare for the km 13 section. Shift to an easier gear from km 12-13 at 5% so you reach the ramp at km 13-14 (9%) with fresh legs.
3. Conquer the wall at km 14-15. Keep a steady cadence, seated if you can, through the 16% section, then use km 15-16 at just 4% to recover before the 10% of km 16-17.
20.4 km • 1179 m D+
VAM: average climbing speed, based on elevation gain
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