Mount Data is a climb of 43.2 kilometers (hors catégorie). Mount Data tops out at 2,192 m above sea level. It is located in Aluling, Ilocos Sur, Philippines. The average gradient is 7.1% with a maximum of 15.9%. The climb has 3051 meters of elevation gain.
Difficulty analysis: The Aluling is an extremely long climb (43.2 km) and very demanding (3,051m D+). Its 7.1% average gradient is steep, but the real challenge is how variable the profile is. There are very punchy sections, like the 12% km (KM 31-32), and several stretches between 8% and 9%. The flat or slightly downhill parts (KM 14-16, KM 19-21, KM 23) give you valuable recovery time but break your rhythm.
Pacing tips:
1. Find a steady rhythm by targeting a power or heart rate you can hold for the long haul. Resist the urge to go over your limit on the steepest ramps (9-12%).
2. Make the most of the flat or downhill sections (like between KM 14 and 16 or around KM 23) to recover by spinning easy, without pushing, so your legs get a partial top-up.
3. Manage your effort on the final part. The last kilometres have moderate gradients (4-7%), but accumulated fatigue will make them tough. Keep some gas in the tank for this last section.
43.2 km • 3051 m D+
VAM: average climbing speed, based on elevation gain
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