Col de zima is a climb of 12.8 kilometers (hors catégorie). Col de zima tops out at 918 m above sea level. It is located in Ouled Belaid, Bouira, Algérie ⵍⵣⵣⴰⵢⴻⵔ الجزائر. The average gradient is 6.0% with a maximum of 15.2%. The climb has 775 meters of elevation gain.
Difficulty breakdown: At 12.8 km for 775 m of elevation gain and an average gradient of 6%, the Col de Zima is an HC climb, and its difficulty lies mostly in its length and its irregularity. The km 2.0-3.0 section, at 12%, is the steepest part and can wreck your rhythm right from the start. The final stretch, from km 9.0 to 12.8 at 7% to 8% with no real respite, puts serious strain on your reserves.
Pacing tips:
1. Start easy on the flat opening. The km 0.0-1.0 section is at 0%, the perfect time to find your rhythm and reach the foot of the km 2.0-3.0 ramp with fresh legs.
2. Prepare for the 12% section. Shift to an easier gear before km 2.0, keep a steady cadence and stay seated to save energy.
3. Pace yourself in the last part. Use the km 6.0-7.0 descent (-6%) to recover and drink, then manage the 7% to 8% gradients from km 9.0 to 12.8 with a steady effort rather than surges.
12.8 km • 775 m D+
VAM: average climbing speed, based on elevation gain
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