Robinson Pass

Overview

Robinson Pass is a Category 2 climb in South Africa (ZA), covering 8.6 km from base to summit. It carries you from a start elevation of 346 m up to a summit of 772 m, for a net elevation gain of 426 m. On paper that is a steady mid-single-digit effort, the kind of climb you can settle into and grind out over the better part of half an hour.

The paper version is not the whole story. While the net elevation gain is 426 m, the total ascent is 648 m — a gap of 222 m. That extra climbing comes from undulation: the road gives some height back before taking it again. Every metre you descend has to be re-earned, so the actual work is meaningfully greater than the net figure suggests. Plan for the total ascent, not the net gain, when you budget your energy.

How the Gradient Unfolds

The average gradient of 4.98% is an accounting average, not a lived experience. Because the profile undulates, that mean is diluted by flatter and descending sections, which means the climbing portions are steeper than 4.98% to compensate. The standout number is the maximum gradient of 15.78% — a ramp roughly three times the average that will spike your heart rate if you hit it in the wrong gear.

• Flatter and mild descending sections that let you recover but also reset your rhythm
• Repeated short climbs stacked back to back, driving the total ascent well above the net gain
• A steepest ramp at 15.78% that demands a deliberate gear change before you reach it

Pacing Notes

On an undulating climb like this, chase even effort, not even speed. Hold a steady sustainable power output through both the steep ramps and the flatter breaks rather than surging to keep your speed constant. Speed will naturally fall on the pitches and rise on the recovery sections — that is correct, and fighting it wastes energy you will want for the 15.78% ramp.

If you do not know your numbers, run the FTP estimator first so you can set a wattage ceiling. With 648 m of total ascent to clear, discipline early pays off: riders who blow through the opening pitches at threshold pay for it before the summit.

Gearing

Gear for the steepest gradient, not the average. At 15.78%, a standard road setup will leave you mashing at low cadence. Fit a compact or sub-compact chainset paired with a wide-range cassette — a 34×32 or 34×34 gives you a bail-out gear that keeps your cadence sensible on the ramp. Check your setup before the ride; a chain that will not reach the largest sprocket is a problem you want to find in the driveway, not on the 15.78% pitch.

Summary

• Length: 8.6 km
• Average gradient: 4.98%
• Maximum gradient: 15.78%
• Net elevation gain: 426 m
• Total ascent: 648 m
• Category: 2

Robinson Pass rewards riders who read past the average. Pace to your power, gear for the steepest ramp, and respect the 222 m of extra climbing hidden in the undulation.