Originally Posted by
rseeker
I don't know what the original tire spec was, but the ones they had on there were quite skinny, maybe that's part of it.
OK, so you'll be going with wider tires for touring, and that will raise the BB by the difference in width. ie. about 1/2" if going from 25 to 38mm.
BTW - low BB is highly desirable on a touring bike. You want to be able to put a toe down while still seated when you stop. Loaded bikes are unstable when held from the handlebars only, so staying seated as you plant a toe is a big plus.