My wife really likes her 1961 Atala for riding in the flatlands; we're planning a longer tour in the mountains, though (here's the thread where I was considering other options), so I'd like to set it up with a triple crankset. Right now, it's got the original steel double crankset on a 128mm cottered spindle. Chainline is 41mm to the inner ring. The BB is Italian (shell 70mm). Three questions:
1. What inexpensive modern triple crankset would you recommend? Which FD to go with it? I think I'll stick with friction shifting.
2. If I wanted to use a typical modern triple crankset, what length square-taper BB spindle should I get? Looking on Sheldon's charts, I'm seeing lengths from 110 to 123mm. Or would I be better off with an Italian cartridge BB?
3. Anything I'm not thinking about, here?
I think I'll be doing the same conversion with my '71 Raleigh International for myself, so stay tuned. Thanks for your help!