Tokura Pass

Overview

Tokura Pass sits in Japan and earns a Category 2 rating across its 8.2 km length. The headline numbers — a 5.37% average gradient and 439 m of net elevation gain — make it look manageable on paper. The 22.65% maximum gradient tells a different story. This is a climb that punishes anyone who reads only the average and sets off too hard.

Total ascent across the full route comes to 787 m against a net gain of 439 m, which means significant elevation is lost and re-gained somewhere along the way. The road is not a clean, continuous ramp. Expect undulations, false flats, and at least one section that gives back elevation before the final push to the summit.

How the Gradient Unfolds

With an average of 5.37% across 8.2 km, large portions of Tokura Pass feel well within reach for a trained cyclist. The danger is complacency. The gap between the average (5.37%) and the maximum (22.65%) is enormous — a difference of more than 17 percentage points. That kind of disparity signals short, sharp ramps embedded in otherwise moderate terrain.

What to expect section by section

• Lower slopes: The start elevation of 354 m and the net gain profile suggest the early kilometres are the gentler introduction. Use this to settle into a sustainable tempo rather than banking time.
• Mid-climb undulations: The mismatch between 787 m total ascent and 439 m net gain confirms the road dips meaningfully at least once. Resist the urge to push through descents — you will need those matches later.
• Steep ramps: The 22.65% maximum will appear somewhere in the upper half, as these gradients are typically concentrated where the road is forced to gain elevation quickly. When the ramp hits, cadence will drop sharply unless you are in the correct gear before the pitch steepens.

Pacing Notes

A 5.37% average is moderate enough to make Tokura Pass feel like a threshold effort throughout, but the embedded 22.65% sections demand a different approach. Riding to a flat power target will blow up your legs the moment a steep ramp arrives.

The practical approach: target a power slightly below your FTP on the gentler stretches, accept that power will spike on the steep ramps, and manage overall effort by feel and heart rate through transitions. If you use a head unit with gradient display, watch for the road tilting past 10% — that is your cue to drop a gear proactively.

Gearing Recommendations

• Compact or sub-compact crankset (50/34 or 46/30) is advisable given the 22.65% maximum.
• Wide-range cassette: An 11-32 is a minimum; 11-34 gives meaningful margin on the steepest pitches without forcing a grinding cadence.
• Riders on 1x drivetrains should confirm their low gear produces a ratio that sustains at least 70–75 rpm at 22% before committing to this climb.

If you want to model your gear ratios against expected power output before the ride, the FTP estimator can help establish a baseline for target wattage across each gradient band.

Summary

Tokura Pass is a Category 2 climb that earns its rating through gradient variance rather than raw length or sustained steepness. The 8.2 km distance and 439 m net gain are achievable for a broad range of trained cyclists, but the 22.65% maximum gradient and 787 m of total ascent demand honest pacing and appropriate gearing. Treat the moderate sections as recovery, not opportunity — the steep ramps will arrive, and they will not give much warning.