Akana Pass

Overview

Akana Pass is a Category 3 climb in Japan running 6.9 km from a start elevation of 320 m to a summit at 617 m. On paper the numbers are modest: a net elevation gain of 297 m spread across nearly seven kilometres, averaging out to a gradient that looks approachable. It is the kind of climb that sits comfortably inside a longer ride rather than defining the whole day.

But the net figure understates the work. The total ascent over the climb is 415 m — 118 m more than the 297 m of net gain. That gap means the road gives back elevation you have already earned, dropping and rising again before the summit. Every metre of descent is a metre you have to reclaim, so the effort you feel in the legs is closer to the 415 m of total climbing than the tidy net-gain headline suggests.

How the Gradient Unfolds

The 4.32% average is a blend, not a description of any single stretch. On an undulating profile like this, the mean is dragged down by the descents baked into the total ascent, which means the climbing pitches are steeper than 4.32% wherever the road is actually going up. The steepest ramp bites at 16.89% — a gradient that forces a real gear change and a shift in position.

Expect the profile to break down roughly like this:

• Flatter and recovery sections where the road dips or eases, offering false rest between the harder pitches
• Repeated short climbs stacked back to back, the signature of that 118 m of extra ascent
• A steepest ramp near 16.89% that demands your lowest gear and a controlled, seated grind

Pacing Notes

On a climb this lumpy, chasing an even speed will wreck you. Holding constant km/h means spiking your power on every steep pitch and coasting through the dips, and those spikes accumulate fast. Instead, pace by even effort. Anchor your ride to a sustainable power output you can hold across the full 6.9 km, letting your speed rise on the shallow sections and fall on the 16.89% ramp while the effort stays flat.

If you do not know that number, run the FTP estimator before the ride and set a ceiling you will not exceed on the early ramps. Discipline on the first pitches is what leaves you something for the ones that follow.

Gearing

The 16.89% maximum gradient is the number that should govern your setup. That is steep enough that a standard chainset will have you mashing at low cadence and burning matches you cannot afford on an undulating climb. Fit a compact or sub-compact chainset paired with a wide-range cassette — a 34×32 or 34×34 gives you the spin-friendly bailout gear the steepest ramp calls for. Check your setup before the ride, not at the base of the climb.

Summary

• Length: 6.9 km
• Average gradient: 4.32%
• Maximum gradient: 16.89%
• Net elevation gain: 297 m
• Total ascent: 415 m
• Category: 3

Akana Pass is a Category 3 climb that plays harder than its average suggests. Respect the gap between 297 m of net gain and 415 m of total ascent, pace by effort, gear low for the 16.89% ramp, and the climb becomes a rhythm exercise rather than a survival one.