Two Ocean Pass

Two Ocean Pass cycling climb profile

Two Ocean Pass is a long, high category 2 climb in the US, and the headline number tells you most of what matters before the road even tilts up: 29 km at an average gradient of 3.29%. That is not a climb defined by sustained steepness. It is defined by duration, elevation, and the need to avoid turning a moderate gradient into a slow-burn overreach.

The climb starts at 2108 m and tops out at 3061 m, gaining a listed 953 m from bottom to summit. That means the physical demand is not just the vertical gain, but the fact that every effort happens at elevation. A rider who treats the early slopes like a rolling approach rather than the start of a real climb risks paying for it later, not because the average gradient is savage, but because 29 km gives small pacing errors a long time to compound.

How the gradient unfolds

With an average of 3.29% and a maximum gradient of 8.84%, Two Ocean Pass should be read as a mostly manageable ascent with sharper ramps embedded inside it. The data does not support calling it a wall or a consistently steep climb. It does support treating it as an endurance climb where the hard moments are likely to feel disproportionately costly because they interrupt a long aerobic effort.

The practical mistake is to anchor pacing to the average gradient. A 3.29% average can tempt riders into pushing a bigger gear and riding above sustainable pressure because the road may not feel obviously steep. But the presence of ramps up to 8.84% changes the equation. Those steeper pitches are where riders who have been riding just over their limit start to lose rhythm, especially late in a climb of this length.

Pacing and gearing notes

Start conservatively. For a climb this long, the correct opening effort is one that feels almost too controlled. If using power, anchor the first part below your sustainable climbing target rather than chasing speed. The goal is to arrive at the steeper ramps with room to respond, not already locked into a fading effort. For context on setting that ceiling, use your /glossary/ftp as a guide rather than relying on perceived speed.

Gearing should be chosen for the maximum gradient, not the average. The 8.84% ramps are not extreme in isolation, but on a 29 km climb at elevation they are enough to punish an overgeared setup. A lower climbing gear lets you keep cadence when the road kicks up, which protects the legs from repeated torque spikes.

The best way to ride Two Ocean Pass is steady, patient, and slightly under control until the upper portion. The climb rewards riders who respect duration more than gradient.