Kastrolnek Pass is a climb of 17.3 kilometers (category 1). Kastrolnek Pass tops out at 1,809 m above sea level. It is located in Mkhondo, Mpumalanga, South Africa. The average gradient is 3.0% with a maximum of 10.4%. The climb has 522 meters of elevation gain.
Difficulty analysis: This 1st category climb has an uneven profile. The difficulty is concentrated in the second half, with a demanding stretch between km 13 and 17 (gradients of 5% to 7%). The first kilometres, alternating rolling false flats up and down, allow you to warm up progressively.
Pacing advice:
1. Pace your start: Make the most of the first 5 km, which are not too steep, to settle into a steady rhythm without wasting energy.
2. Prepare for the hard part: Save your legs on the flat section (km 10-11) so you reach the steepest part (km 13 to 17.3) fresh.
3. Keep something in the tank: The 7% on km 14 to 16 is the key; adjust your effort to get through it without going into the red.
17.3 km • 522 m D+
VAM: average climbing speed, based on elevation gain
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