Jombok is a climb of 16.6 kilometers (category 1). Jombok tops out at 675 m above sea level. It is located in Bukur, Jawa Timur, Indonesia. The average gradient is 3.7% with a maximum of 9.5%. The climb has 611 meters of elevation gain.
Difficulty breakdown: This Category 1 climb has a progressive profile. The first half (0-8 km) is moderate, with an average gradient of 2%, and serves as a warm-up. The difficulty then ramps up noticeably, with a second half (8-16.6 km) averaging 4.3% and three sections at 5%, demanding disciplined effort management.
Tips for pacing yourself:
1. Manage your rhythm: Use the first 8 km, which are less steep, to find a sustainable tempo without overcooking it. The real work starts after that.
2. Prepare for the key sections: Kilometres 11-12 (5%), 12-13 (5%) and 14-15 (5%) are the hardest. Hit them with fresh legs and ease off the pace just before.
3. Keep a steady cadence: The 3.7% average gradient suits a consistent gear choice. Avoid surges so your legs last the distance.
16.6 km • 611 m D+
VAM: average climbing speed, based on elevation gain
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