Puerto de Chiquihuite

Overview

Puerto de Chiquihuite is a long, low-gradient haul that rewards patience over punch. Across 16.5 km the road lifts you from 1697 m to a summit of 2195 m, a net gain of 498 m. That works out to an average gradient of just 3.01%, which on paper looks gentle — and for the most part it is. The steepest pitch tops out at 6.55%, so nothing here demands out-of-the-saddle heroics. What makes this a genuine test is the sheer distance combined with thin mountain air near the top. Rated Category 3, it sits comfortably in the middle of the difficulty scale: harder than a short Cat 4 rise, but well short of the leg-breaking Cat 1 and HC monsters. Think of it as an endurance climb, not a power climb.

How the Gradient Unfolds

The defining feature of Chiquihuite is consistency. With an average of 3.01% and a maximum of only 6.55%, the gap between the mellow stretches and the hardest ramp is small — roughly three and a half percentage points. There are no wall-like surprises waiting to blow your rhythm apart. Instead you get a rolling, dragging incline that occasionally stiffens toward that 6.55% figure before easing back. Because the total ascent of 527 m is slightly more than the net gain of 498 m, a handful of short descents or flat sections break up the 16.5 km. Those brief reliefs are worth using: soft-pedal them to recover, then re-engage smoothly when the road tilts up again.

Pacing Notes

On a climb this long and this steady, pacing is everything. Target a sustainable effort around threshold rather than surging on the steeper ramps — the modest 6.55% max means there is little to gain from attacking. A good benchmark is to settle just under your FTP and hold it honestly for the full 16.5 km. If you do not know your threshold number, estimate it first with the FTP estimator, then translate that into a wattage you can defend for the better part of an hour. The biggest pacing mistake here is going out too hard early, since 498 m of climbing at altitude punishes any overspend long before the summit at 2195 m.

Gearing

Because the gradient stays mild, you do not need extreme range — but the length argues for staying comfortable rather than grinding. A compact crankset paired with a wide-range cassette is the sweet spot. A 34×32 will handle the 6.55% ramps for most fit riders, keeping your cadence lively without over-torquing the pedals. If you weigh more, ride tired legs, or simply prefer to spin, a 34×34 buys extra insurance for the top slopes where thin air saps your usual power. Either way, the goal is to protect your cadence across all 16.5 km.

Summary

Puerto de Chiquihuite is a distance-and-altitude climb rather than a steepness test: long, steady, and best ridden with disciplined pacing and forgiving gears.

Length: 16.5 km
Average gradient: 3.01%
Max gradient: 6.55%
Start: 1697 m
Summit: 2195 m
Net gain: 498 m
Total ascent: 527 m
Category: 3