Attakwaskloof Pass

Attakwaskloof Pass cycling climb profile

Attakwaskloof Pass is a climb that looks manageable on average and becomes harder through duration. The headline number is 21.1 km at 3.4%, which is not brutally steep in isolation, but the length changes the problem. This is not a short power climb where the right answer is to absorb the steep parts and recover over the top. It is a Category 2 effort that asks for controlled output for a long time.

The pass starts at 140 m and tops out at 857 m, giving 717 m of net elevation gain. Total ascent is 734 m, which is only slightly higher than the net gain. That matters. It suggests the road trends upward with very little wasted climbing from repeated descents. Even if the gradient is not constantly severe, the rider should expect a broadly continuous rise rather than a climb with frequent meaningful recovery.

How the gradient shapes the ride

The 3.4% average can be misleading if used as the pacing target for the whole climb. A climb this long with a maximum gradient of 9.88% will not feel like a steady 3.4% trainer effort. The average tells you the overall metabolic cost. The maximum tells you why pacing discipline matters.

On a climb like this, the risk is over-responding to the steeper pitches. A ramp near 9.88% can easily pull a rider above threshold, especially if they are already carrying fatigue from the earlier kilometres. Those surges are expensive because the climb is long enough that small mistakes compound. The better approach is to let speed fall when the gradient bites and keep power or perceived effort stable.

Pacing and gearing

Treat Attakwaskloof Pass as an aerobic climb with selective torque demands, not as a repeated attack climb. The opening should feel slightly too easy. If you are riding by power, anchor the effort below /glossary/ftp early, then allow short rises on the steeper ramps without turning them into full anaerobic efforts.

Gearing should be chosen for the maximum gradient, not the average. A setup that feels comfortable at 3.4% may become heavy when the road approaches 9.88%, especially late in the climb. The practical goal is simple: preserve cadence when the gradient lifts so you are not forced into low-cadence grinding while already deep into a 21.1 km ascent.

Key riding notes

• Respect the length first. The climb gains 717 m net, so there is enough vertical to punish early enthusiasm.
• Do not pace from the average gradient alone. The 9.88% maximum means short sections can bite.
• Use gearing that gives you an escape option for the steepest ramps.
• Expect limited true recovery, since total ascent is 734 m against 717 m net gain.

The cleanest ride is a negative-split mindset: patient early, controlled through the steeper sections, and only lifting the effort once the summit at 857 m is clearly within reach.