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Chyamistar Pass from Durchhim: what you need to know

Everything about cycling up Chyamistar Pass from Durchhim

Chyamistar Pass is a climb of 11.8 kilometers (hors catégorie). Chyamistar Pass tops out at 1,258 m above sea level. It is located in Durchhim, कोशी प्रदेश, नेपाल. The average gradient is 11.5% with a maximum of 14.2%. The climb has 1357 meters of elevation gain.

Elevation profile

Elevation profile

Climb statistics

Hors catégorie
Difficulty score: 3198 (Very hard)
Altitude
1,258 m
Distance
11.8 km
Avg. gradient
11.5 %
Max gradient
14.2 %
Elevation gain
1357 m
Steepest section: 14.2% (km 3.1)
Tips

Gradient breakdown: This HC climb covers 11.8 km for 1357 m of elevation gain, with an average gradient of 11.5%. The real difficulty is the relentless consistency: almost constant 8-10% from the very first kilometres, then brutal ramps at 13% (6-7 km) and especially 15% (8-9 km). The brief dip to -5% (10-11 km) gives you a short breather before the final 4% section (11-11.8 km).

Pacing tips:

1. Stay steady from the bottom: on the 0-3 km stretch at 8-10%, ride at a pace you can hold all the way to the summit rather than trying to drop your rivals.

2. Prepare for the 15% wall: shift down into your easier gears before the 6-7 km and 8-9 km sections, stay in the saddle, keep a smooth, light cadence and avoid jerky pedal strokes.

3. Recover on the descent: use the -5% stretch at 10-11 km to recover a little, then ease back into it on the 4% section from 11-11.8 km so you still have something left for the finish.

Estimated times

11.8 km • 1357 m D+

Leisure 4h 50min
2.4 km/h 350 m/h
Regular 3h 05min
3.8 km/h 550 m/h
Trained 2h 10min
5.4 km/h 800 m/h
Climber 1h 35min
7.4 km/h 1100 m/h
Pro 1h 05min
10.9 km/h 1600 m/h

VAM: average climbing speed, based on elevation gain

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