Originally Posted by
Oldtimer61
Actually the chain doesn't skip, it slips off or derailed. I hv a long cage derailleur and chain is good for the 53t. It works perfectly with the same crankarms + low end 52t chainring. But once I swop chainring to 53t litepro, it'll derail off either the biggest or smaller cog, depending on which length BB i use. Seems like this litepro chainring is the culprit as I borrowed a friend's 53t chainring and no issues. Thanks for your help.
As you change the chainline you need to adjust the rear derailleur limit screws. Any shop can do it for you in about 3 minutes. If it is dropping off the high gear, you need to screw in the High gear adjustment screw a 1/2 turn at a time until it is perfectly lined up.