Originally Posted by
Spoonrobot
That's awesome. What are the altitude effects like doing it as one ride?
Well, I definitely noticed a drop in my power output above about 12,000 feet. I slept at altitude for a few days beforehand, which I think helped overall.
How you feel at altitude and how you're performing may not match up. When I rode up Mt. Evans on a road bike, I felt really strong towards the summit. Later, I checked my stats. My climbing rate wasn't anything to write home about, the road grade just wasn't very steep.