Nakayamagoe Pass cycling climb profile
Nakayamagoe Pass is a short, controlled category 4 climb in Japan: 4.7 km at an average gradient of 3.93%, rising from 175 m to a summit elevation of 358 m. On paper, that places it firmly in the steady-tempo category rather than the survival-climb category.
The key number is not just the average gradient, but the relationship between the average and the maximum. With a listed maximum of 5.16%, the climb does not appear to have a dramatically steeper sting hidden inside the profile. That matters tactically. A climb with an average near 4% and a maximum just over 5% rewards rhythm, aerodynamic discipline, and controlled power more than repeated accelerations out of the saddle.
How the gradient unfolds
From bottom to summit, the climb gains 183 m of elevation over 4.7 km. The supplied profile also lists 165 m of total ascent, which reinforces the main riding takeaway: this is a compact pass with a moderate vertical load, not a long grinding ascent.
Because the maximum gradient is only 5.16%, the road is unlikely to force major changes in cadence or gearing if you choose the right gear early. The climb should feel like a persistent drag that gradually taxes your aerobic system rather than a wall that spikes your torque demand. The difference is important. On a climb like this, going too hard in the opening minutes can still hurt, but the penalty comes from accumulating lactate above threshold rather than from being over-geared on steep ramps.
Pacing strategy
Ride Nakayamagoe Pass as a smooth threshold-to-tempo effort depending on your goal. If it is part of a longer ride, settle below /glossary/ftp and keep the effort boringly even. The shallow average gradient makes it tempting to push a little harder than planned, especially if speed stays high, but that is exactly how a short climb becomes inefficient.
If you are targeting the climb itself, build the effort progressively. Start controlled, lock into a sustainable cadence, and only lift the pace once the summit is close enough that you are not relying on recovery. The profile does not demand violent power spikes, so the fastest ride is likely to come from minimizing variation rather than chasing every slight pitch change.
Gearing notes
Most riders will not need ultra-low climbing gears for a 3.93% average gradient with a 5.16% maximum. The practical priority is having enough range to keep cadence steady while seated. A compact or modern wide-range road setup should let you stay efficient without grinding.
Stronger riders may be able to carry a bigger gear and treat the climb almost like a rolling time-trial effort. Less powerful riders should still avoid over-gearing, because the climb is long enough for low-cadence torque to accumulate fatigue. Use gearing to protect rhythm first, speed second.