Ijen is a climb of 14.6 kilometers (hors catégorie). Ijen tops out at 1,871 m above sea level. It is located in Kalianyar, Jawa Timur, Indonesia. The average gradient is 6.5% with a maximum of 16.4%. The climb has 949 meters of elevation gain.
Difficulty analysis: The Ijen from Blawan is a HC climb of 14.6 km for 949 m of elevation gain, with an average gradient of 6.5%. The difficulty lies mainly in its consistency: the road gives you almost no respite, with 6% gradients from the start and much steeper sections, notably between km 6.0 and km 7.0 at 11%. Only the km 2.0-3.0 stretch, at 1%, offers any real recovery, and the effort finishes on a 10% section between km 13.0 and km 14.0.
Tips for the effort:
1. Pace your start. Between km 0.0 and km 2.0, don't go out too hard on the 6% then 9% gradients, because there's still more than 12 km to climb.
2. Recover on the flat. Use the km 2.0-3.0 section at 1% to get your breath back, drink and fuel up before the toughest part.
3. Handle the walls. Tackle the km 6.0-7.0 section at 11% and the km 13.0-14.0 section at 10% with an appropriate gear and a steady cadence, staying seated if you can.
14.6 km • 949 m D+
VAM: average climbing speed, based on elevation gain
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