Nathula is a climb of 8.8 kilometers (category 1). Nathula tops out at 4,278 m above sea level. It is located in Kupup, Sikkim, India. The average gradient is 5.9% with a maximum of 12.3%. The climb has 518 meters of elevation gain.
Difficulty breakdown: The Nathula is a 8.8 km climb with 518 m of elevation gain, averaging 5.9%, which puts it in Category 1. The first 5 km are steady, between 4 and 6%, but the climb gets noticeably harder between km 4.0 and 8.5. The toughest stretches, at 9% over 6.5-7.0 km, then 8% over 5.5-6.0 km and 8.0-8.5 km, come when the legs are already cooked. The 6.0-6.5 km section, at 1%, gives you a real breather, but don't ease off too much.
Tips for pacing:
1. Managing the start For the first 2.5 km, at 4-6%, ride a strong but controlled effort so you still have something left for the second half.
2. Using the false flat Use the 1% section between 6.0 and 6.5 km to pick up your cadence, catch your breath and get ready for the 9% ramp that follows.
3. Setting up the finish Over 8.0-8.5 km, at 8%, shift into an easier gear and keep a smooth cadence until the flat section from 8.5 to 8.8 km.
8.8 km • 518 m D+
VAM: average climbing speed, based on elevation gain
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