I have a road bike that I use for triathlons as well as club rides in the evenings and on weekends. I don't have the bike in front of me, but the range of the cassette is on the low side. I'm more likely to run out of gears going uphill than down.
I'm going on a bike trip in the Alps next month and it'd probably be to my advantage to have a bit more breathing room for climbing if I'm going to be doing it an entire week. That's why I'm considering getting another cassette with a wider range. Does it make more sense to have a separate cassette that I swap onto my current wheel when needed or should I go ahead and get another wheel to make the swap easier. I don't necessarily want to take apart wheel each time I want to swap. How do people usually handle this?