Teton Pass

What to Expect from Teton Pass

Teton Pass is a Category 1 climb in the western United States that covers 8.2 km from base to summit, gaining 680 m net elevation along the way. The total ascent figure of 846 m tells you something important before you even turn a pedal: this road is not a clean, unbroken ramp. There is enough undulation baked into the route that your legs accumulate more vertical work than the net numbers suggest. Factor that in early.

The average gradient sits at 8.24% — firmly in the territory where FTP becomes the ceiling rather than a target. Riding at or above threshold for the better part of 8 km is a fast route to a blown finish. Most riders should aim to hold somewhere in the 75–85% of FTP range through the opening half and reserve any deeper efforts for the final kilometres.

Gradient Breakdown

The 23.77% maximum gradient is the defining hazard. A pitch that steep on a climb this long is not a brief wall followed by recovery — it represents the kind of ramp that can snap a poorly managed effort in half. Exact placement of the steepest sections is not specified here, but the gap between the 8.24% average and the 23.77% peak tells you the road is highly irregular. Expect sections that feel comparatively manageable followed by abrupt ramps that demand an immediate gear change.

Key gradient realities:

• Average: 8.24% — sustained and honest, no flattery
• Maximum: 23.77% — steep enough to stall an under-geared rider mid-pitch
• Total ascent vs. net gain: 846 m climbed for 680 m net — small rollers and false flats add up

Gearing Notes

Do not treat a compact chainset as optional here. A 34/32 or 34/34 low-end combination is a sensible baseline for most riders. On the steepest ramps approaching 24%, even strong climbers will want a gear that lets them keep cadence above 70 rpm rather than grinding into lactic accumulation. If you're using a road double with a tighter cassette range, check your FTP against the expected time on climb to see whether you're likely to hit those pitches with anything left.

Riders on gravel or adventure setups with wide-range 1x drivetrains are at no disadvantage on a climb like this — the varied gradient rewards the ability to shift quickly across a broad range.

Pacing the Climb

The opening kilometres from 1,898 m starting elevation will feel manageable at 8% average. That's the trap. The total ascent of 846 m means the road gives back some height at points, and those brief descents or flats encourage acceleration. Resist. Banking effort on a Cat 1 climb at this gradient profile rarely pays dividends.

A disciplined approach:

1. First third: Settle into a sustainable power output well below threshold. Establish rhythm.
2. Middle kilometres: Maintain, don't build. Any steep ramp here should be ridden through, not attacked.
3. Final kilometres: If you've executed the first two phases correctly, you have room to lift power. If you haven't, you're already managing damage.

The summit sits at 2,578 m. At that elevation, air is thin enough to affect breathing and perceived exertion relative to sea-level benchmarks — particularly relevant for riders travelling from lower-altitude training environments. Build in acclimatisation time if possible.

Bottom Line

Teton Pass is an uncompromising Category 1 climb. The 8.24% average is relentless, the 23.77% maximum demands appropriate gearing, and the 846 m of total ascent leaves no room for sloppy pacing. Treat it with respect from the first pedal stroke and it rewards a controlled, data-led effort.