Two of my friends have this same problem, so i figured i'd ask about it here so i can give them some help. In one case, when he's shifting from the smallest to the middle cog up front, the chain heading leaving the cog sticks to the cog, until the chain doubles up on itself. In the other case it happens when shifting from the middle down to the smallest. Both cases are with LX componentry. Anybody got suggestions? Thanks in advance.