Serra da Casaca is a climb of 10.9 kilometers (hors catégorie). Serra da Casaca tops out at 667 m above sea level. It is located in Cunhambebe, Rio de Janeiro, Brasil. The average gradient is 6.9% with a maximum of 13.5%. The climb has 757 meters of elevation gain.
Difficulty breakdown: A demanding 10.9 km climb with a sustained average gradient of 6.9%. The real challenge is how uniform the profile is: gradients stay between 5% and 7% the whole way, with no meaningful respite. The steepest kilometre (7.0-8.0 km at 7%) comes late, which makes it a tactical test.
Tips for pacing the effort:
1. Pacing: Don't go out too hard. The first kilometres (3%) are deceptive, right before the gradient ramps up immediately. Settle into a steady gear from km 1.0.
2. Save something for the key section: Keep some in the tank for km 7.0-8.0 (7%), the steepest stretch. Burning matches before that section can cost you dearly.
3. Stay consistent: With no flat portion anywhere, you need a steady effort throughout. Control your breathing and heart rate on the 5-6% sections so you hit the 7% stretches in good shape.
10.9 km • 757 m D+
VAM: average climbing speed, based on elevation gain
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