Phantom Pass

Phantom Pass cycling climb profile

Phantom Pass is a short, controlled category 4 climb in South Africa, measuring 2.9 km at an average gradient of 3.8 percent. The road rises from 3 m to 112 m, giving it a net elevation gain of 109 m, which tells you most of what matters before you start: this is not a climb defined by survival, but by rhythm, efficiency, and not over-riding the early slope.

The key number is the gap between the average gradient and the maximum gradient. With the steepest section listed at 5.73 percent, Phantom Pass does not appear to contain the kind of violent ramps that force a major pacing reset. Instead, the profile points toward a climb that sits in the endurance-to-tempo range for many riders, with short periods where the gradient nudges high enough to punish poor cadence or an oversized gear.

How the gradient unfolds

From bottom to summit, the climb gains height gradually rather than through one decisive wall. Over 2.9 km, a 3.8 percent average means speed will stay relatively high compared with longer or steeper climbs, so aerodynamic drag still matters more than many riders expect on a climb. This is the kind of ascent where sitting up too much, surging unnecessarily, or grinding at low cadence can cost time without feeling catastrophic in the moment.

The maximum gradient of 5.73 percent is important because it defines the upper ceiling of the effort. Even the hardest pitch remains manageable for a rider who has chosen the right gear before the slope tightens. The danger is not being forced into the red by the terrain. The danger is treating the moderate opening as free speed, then carrying too much lactate into the steeper moments.

Pacing and gearing notes

Ride Phantom Pass like a short threshold-controlled climb rather than a sprint. If you are using /glossary/ftp as your reference point, the best execution is a smooth build: settle quickly, keep pressure on the pedals, then lift the effort only once the summit is close enough that a fade will not cost more than the acceleration gains.

Practical approach:

• Start one gear easier than instinct suggests, especially if riding into the climb at speed.
• Keep cadence stable through the middle of the climb, since the gradient does not demand a large gearing change.
• Use the 5.73 percent maximum gradient as the point where torque rises, not as a reason to stand and surge unless you are finishing hard.
• If riding for time, avoid repeated accelerations. On a 2.9 km climb, small inefficiencies compound quickly.

For most riders, a compact or mid-compact road setup gives more than enough range here. Stronger riders may stay in the big ring if cadence remains smooth, but that should be a consequence of control, not ego. Phantom Pass rewards the rider who keeps the effort narrow, stays seated through the shallow gradients, and saves the final lift for the last part of the ascent.