Van Reenen's Pass

Overview

Van Reenen's Pass is a Category 3 climb in South Africa (ZA). It runs 11.1 km from a start elevation of 1,270 m to a summit of 1,700 m, for a net elevation gain of 430 m. At an average gradient of 3.88%, it reads on paper as a moderate, sustained drag rather than a wall.

The number to watch is the gap between the net gain and the total ascent. You climb 430 m net, but the profile logs 600 m of total ascent. That extra 170 m tells you the road undulates: it gives some height back before taking it again. The consequence is that your legs do more work than the 430 m figure suggests, and the average gradient understates the effort on the pitches that matter.

How the Gradient Unfolds

An average of 3.88% is a blend, not a constant. With a maximum gradient of 16.84%, this climb hides real teeth inside a mild-looking mean. The undulation means the road is not a single ramp; it is a series of rises broken by flatter and downhill stretches, so the steep percentages are concentrated rather than spread evenly.

• Flatter and recovery sections where the road eases or drops, giving back some of the 430 m net gain
• Repeated short climbs that reclaim that lost height, driving the total ascent to 600 m
• A steepest ramp reaching 16.84%, several times the average and where any pacing plan gets tested

Pacing Notes

On a smooth, even climb you can hold a steady wattage and let speed vary. Van Reenen's Pass punishes that instinct. Because the gradient swings from downhill to double digits, chasing an even speed will spike your power on the steep pitches and waste it on the flats. Anchor your effort to a target sustainable power output instead, and let your speed rise and fall with the terrain.

Practically, ease slightly on the recovery sections rather than hammering to keep speed up, then allow a controlled surge over the short steep ramps. If you do not know your ceiling, run the FTP estimator first so your target is a real number, not a guess.

Gearing

Gear for the steepest gradient, not the average. A 16.84% ramp late in a climb will overgear anyone on a standard chainset. Fit a compact (50/34) or sub-compact chainset paired with a wide-range cassette — a 34×32 or 34×34 low gear gives you a cadence you can actually turn on the worst of it. Check your setup before the ride: confirm the low sprocket you expect is physically on the bike and that the rear derailleur shifts cleanly into it under load.

Summary

• Length: 11.1 km
• Average gradient: 3.88%
• Maximum gradient: 16.84%
• Net elevation gain: 430 m
• Total ascent: 600 m
• Category: 3

Van Reenen's Pass is a Category 3 climb whose average understates it. Respect the undulation, pace to power, and carry a low gear for the 16.84% ramp, and the 11.1 km will pass on your terms.