Originally Posted by glade

What combination puts the least stress on the drivetrain when the bike is not in use? I have a 39/53 double with a 12-25 10 Speed casette and I usually store it in the 39x19 or 39x21 combo, is that ok? I got it back from the LBS today and they had it in the 53x15, is there any advantage/disadvantage to leaving it in the big or small ring up front?