Originally Posted by
Bill Kapaun
Can you get it to shift off the chain in either/both rings if you back off the limit screws? You "should" be able to if the shifter has enough throw.
if I play with the H and L Limit screws I can get it to EITHER handle the Middle and Big OR the Middle and Small.
but I am struggling to get it to handle all three, at least not gracefully. there just doesn't seem to be enough cable throw to span the three rings.
By Gracefully, I mean that at times (as I have fiddled around with cage alignment and limit screw settings) I have been able to get it to drop into the small ring but ONLY if I come flying off the Big ring. as if momentum carried it from B > M > S.
but if I am in the middle it won't drop down to the small.
How does axle length affecting shifting performance? I would have thought that if the small ring clears the chainstay and the FD didn't bump into the seat tube at its most inside, then axle length would be irrelevant. (but I am probably wrong.)