Rainy Pass cycling climb profile
Rainy Pass is a category 2 climb that asks for discipline more than brute force. At 12.8 km long, with an average gradient of 4.15%, it sits in that important middle ground: long enough that pacing mistakes accumulate, but not steep enough to force constant low-cadence grinding.
The climb starts at 941 m and tops out at 1473 m, with 532 m of net elevation gain. That vertical gain spread across the full distance is what defines the effort. This is not a climb where the headline gradient tells you to brace for sustained double-digit ramps. The maximum gradient is 6.66%, which means the hardest sections are meaningfully above the average, but still within the range where a well-paced rider can stay seated, keep cadence under control, and avoid burning matches unnecessarily.
How the gradient feels
The key to reading Rainy Pass is the gap between the average gradient and the maximum gradient. An average of 4.15% over 12.8 km suggests a climb that rolls upward with a fairly manageable baseline load. The 6.66% maximum tells you there are firmer moments, but nothing in the supplied profile points to a savage wall or a climb that repeatedly forces you out of rhythm.
That matters tactically. On a climb like this, the danger is not usually one single steep pitch. It is the temptation to ride the easier-feeling gradient too hard because the road never feels truly hostile. If you push above threshold early, the length gives the climb enough time to make you pay.
Pacing strategy
Treat Rainy Pass as a sustained aerobic effort with controlled pressure on the pedals.
- Start below your target effort and let the climb come to you.
- Use the 4.15% average as a reminder that speed can feel deceptively high for a categorized climb.
- When the gradient approaches the 6.66% maximum, resist the urge to surge unless you are near the top or riding tactically.
- If pacing by power, anchor the effort around a sustainable percentage of /glossary/ftp rather than chasing speed.
The best ride here is likely a smooth negative split: conservative early, steady through the middle, then increasing pressure once the remaining distance is clearly manageable.
Gearing notes
Rainy Pass does not demand extreme climbing gearing on paper, but it still rewards a setup that lets you keep cadence when the road tips closer to its maximum gradient. A compact or climbing-friendly cassette gives you the option to stay seated and avoid torque spikes, especially if you are carrying fatigue or riding into variable conditions.
The practical mistake would be gearing too tall because the average gradient looks modest. Over 12.8 km, even moderate resistance becomes expensive if every steeper section forces low-cadence work. Choose gears that keep the effort smooth, not heroic.