Kind of a gear question but since the 520 is a touring bike I thought I might get better response here.
It seems to be a common thing to switch from the 105 cranks to MTB cranks, LX or the like.
From those of you who have done the switch, did you have to switch the BB also or was the spindle the correct length for the LX cranks?
I would like to use a closer geared cluster without losing the granny gear, not too concerned about losing the high range. I think I can achieve this by going to LX crank and choosing a different cluster.