Lootsberg Pass

Overview

Lootsberg Pass sits in South Africa's Eastern Cape, rising 238 metres over 4.7 kilometres at an average gradient of 5.05%. On paper it reads as a moderate Category 3 effort. On the road, that average masks a climb with genuine teeth — a maximum gradient of 16.04% that punishes anyone who arrives at the steepest section already deep in the red.

The ascent begins at 1,490 metres elevation, already high enough that thinner air is a minor but real factor for riders coming from lower-lying regions. The summit sits at 1,728 metres, meaning you spend the entire climb at altitude where oxygen delivery is marginally reduced compared to sea-level efforts. If your FTP was measured at lower elevation, factor that in before targeting power numbers here.

Gradient Profile

With 242 metres of total ascent against a net gain of 238 metres, the road is almost entirely uphill — there are no meaningful descending sections to use for recovery once the climb begins. Expect the gradient to vary considerably around that 5.05% mean.

The Lower Slopes

The opening kilometres tend to draw riders into a false sense of pacing security. The average gradient across the full 4.7 km is moderate, which means if the ramp to 16.04% is concentrated in the upper half, the lower section is likely easier than the mean. Resist the temptation to push hard early. The climb is short enough that over-pacing the bottom half will cost you significantly when the road kicks up.

The Steep Section

A maximum gradient of 16.04% is serious. That's a pitch steep enough to force even strong climbers to stand and grind, and on a 4.7 km climb there's nowhere near enough distance to fully recover before the summit. When you hit the steep ramp, controlled breathing and cadence management matter more than raw power output. Keep the pedals turning smoothly rather than mashing at low cadence — sustained 16% demands you stay seated and efficient where possible.

Pacing Notes

• Start conservatively. The short length makes it tempting to go hard from the base. Don't. The 16.04% maximum gradient will extract a heavy cost if your legs are already fatigued.
• Target a steady effort, not a steady power. On a climb with this much gradient variation, holding fixed watts often means over-cooking the steep sections. Ride to perceived exertion and heart rate, letting power fluctuate naturally with the road.
• Reserve something for the top. With net gain concentrated toward the upper metres, finish strong rather than fading through the final pitches.

Use the FTP estimator to calculate a realistic target range before attempting a timed effort here.

Gearing

For a climb averaging 5.05% with a 16.04% spike, a compact chainset (50/34) paired with an 11-32 or 11-34 cassette gives most riders a comfortable cadence across all gradient changes. Riders on a standard 53/39 should ensure they have at least a 28-tooth sprocket available — arriving at a 16% ramp in too large a gear risks blowing up before the summit. If you're unsure how to match gearing to gradient demands, the glossary entry on FTP explains the relationship between sustainable power and climbing cadence.

The Bottom Line

Lootsberg Pass is a compact, punchy Category 3 climb that rewards patience and punishes aggression. At 4.7 km it's over quickly, but the 16.04% maximum gradient means pacing discipline from the first pedal stroke is non-negotiable. Ride the bottom controlled, hold your form through the steep section, and the summit at 1,728 metres comes quickly enough.