Tunnel de Salang is a climb of 39.3 kilometers (hors catégorie). Tunnel de Salang tops out at 3,389 m above sea level. It is located in Ahangaran, ولایت بغلان, افغانستان. The average gradient is 6.1% with a maximum of 16.5%. The climb has 2410 meters of elevation gain.
Difficulty analysis: At 39.3 km averaging 6.1%, the Chokak climb is a long, beyond-category endurance test. The difficulty lies in its demanding consistency, with most kilometres between 6% and 7%, punctuated by steeper sections (notably stretches at 9% and 10% between km 14 and 23) that really take it out of your legs.
Tips for managing the effort:
1. Pace yourself from the start: The first kilometres (3-4%) are deceptive. Don't go over the top early, so you have something left in the tank for the harder middle section.
2. Anticipate the steep sections: Mentally mark the steepest kilometres (14-16, 20-23) and ease off the pace slightly before you reach them to keep your cadence steady.
3. Make the most of the easier finish: The final kilometres (after km 34) are less steep. Use this section to recover a bit and finish strong.
39.3 km • 2410 m D+
VAM: average climbing speed, based on elevation gain
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