Wu Pass

Wu Pass cycling climb profile

Wu Pass is a short, controlled category 4 climb in CN: 4.5 km at an average gradient of 3.61%, rising from 464 m to 627 m. On paper, this is not a climb defined by steep ramps or big changes in rhythm. The maximum gradient is listed at 4.01%, which means the hardest pitch is only slightly above the average.

That narrow spread between average and maximum gradient is the key to understanding how Wu Pass rides. It should feel less like a climb that forces repeated gear changes and more like a sustained drag where speed, cadence, and aerodynamic cost still matter. Because the gradient does not appear to spike meaningfully, the main risk is not getting caught out by a wall. It is riding a little too hard early because the slope feels manageable.

How the gradient unfolds

The numbers point to a steady uphill road from bottom to summit. Over 4.5 km, the climb gains 163 m net between the start elevation and summit elevation. With an average of 3.61% and a maximum of 4.01%, there is very little statistical room for a genuinely steep section.

That matters tactically. On a climb like this, small pacing errors are easy to hide for the first few minutes because the gradient is forgiving. But the same steadiness means there are few natural recovery points. If the road holds close to its average, the effort accumulates in a smooth, aerobic way rather than through sharp anaerobic surges.

For riders using power, Wu Pass is the sort of climb where a controlled effort around sustainable climbing intensity makes more sense than chasing speed changes. If you are riding by feel, the correct sensation is firm but repeatable, not a seated grind. For more on setting effort, see /glossary/ftp.

Pacing and gearing notes

Start slightly under control. The climb is short enough to reward commitment, but the gentle average gradient can trick riders into treating the lower slopes like a fast false flat. Hold back just enough that cadence stays smooth and breathing stays stable.

Gearing should not be a limiting factor for most road setups. Since the maximum gradient is 4.01%, the climb is more about maintaining momentum than finding a survival gear. A cadence-friendly gear is preferable to over-torquing, especially if riding into fatigue or carrying extra load.

The final pacing choice is simple: avoid a hard acceleration from the base, settle into a steady rhythm through the middle, then lift the effort only once the summit is within reach. Wu Pass is not steep enough to demand defensive climbing, but it is long enough that discipline still matters.