Originally Posted by
drtyrrel
The triple came off a Schwinn La tour Luxe and it's going on a Trek 420. Not sure if the axle is the same width as what the Trek would have had with a triple.
Per Sheldonbrown.com
"The spindle length mainly depends on what kind of crankset you'll be using, and doesn't have much to do with the frame. "
https://www.sheldonbrown.com/bbsize.html