Originally Posted by
CliffordK
Are you sure that is true with friction shifters? You don't want to be throwing the chain. The pressure shouldn't be real high after shifting.
Yes, it's true, friction or index. There's room to set the limit beyond the point of perfect trim and still prevent overshifting. So, you overshift beyond where the trim position will be and settle back a hair.
So many people set the limit right about where the trim is right, and cannot overshift for a crisp shift and end up forcing the FD against the limit to get a shift.
My procedure for FD outer limit adjustment, is to shift via direct pulling on the wire, back off until I can dump the chain, then back in by degrees until I can't. Then no tighter than what's necessary to preventing the chain from dumping. That leaves plenty of room to work without forcing things.