I did the 53 mile round trip to Clingmans Dome with a couple of 20 minute tempo efforts on the way up at around 290. Kind of cool at the top (45) but back up to 65 at the chalet. The ride up has about 5000' of elevation gain. I wish I had kept track over the years how many times I've done this ride. I was up to 75 maybe 5 or 6 years ago so it's well over 100 at this point.