Yanmen Pass

Yanmen Pass cycling climb profile

Yanmen Pass is a long, measured Category 2 climb in China: 15.9 km from base to summit, averaging 4.97% and gaining 791 m from a start elevation of 961 m to a summit elevation of 1752 m.

Those numbers point to a climb that is more about discipline than violence. The average gradient sits just under 5%, while the maximum gradient is 7.87%, so the road should rarely demand an all-out muscular response. Instead, the challenge is duration. A rider who treats the opening kilometres like a short hill will spend the back half paying for it.

How the gradient rides

With a 15.9 km length and a contained maximum gradient, Yanmen Pass is best understood as a sustained aerobic climb with occasional firmer sections rather than a stop-start wall. The difference between the average gradient and the maximum gradient suggests the climb has enough variation to interrupt rhythm, but not enough steepness to completely change the type of effort required.

That matters tactically. On a climb like this, the decisive mistakes are usually small: pushing too hard over a short steeper pitch, staying in too large a gear when the road tilts up, or letting the effort drift above sustainable climbing pressure because the gradient feels manageable. The road may not punish you immediately, but over 15.9 km the cost accumulates.

Pacing and gearing notes

Ride the lower slopes with restraint. The average gradient is friendly enough to tempt a rider into chasing speed, but the total elevation gain makes patience the faster option. Settle into a pressure you could hold beyond the visible road, then let the climb come back to you as the altitude gain builds.

Gearing should be chosen for steady seated work, with enough range to stay smooth when the road approaches its 7.87% maximum. This is not a climb that demands emergency gearing for extreme ramps, but it does reward a low enough gear to avoid grinding through the steeper moments. If cadence starts to fall and torque rises, shift earlier rather than forcing the gear.

For pacing, think in terms of controlled threshold management rather than repeated attacks. If using /glossary/ftp as a reference point, the key is to avoid drifting above your sustainable climbing effort before the final portion. The gradient profile implied by the stats makes Yanmen Pass a climb where even power, clean gear selection, and patience should beat surges almost every time.