I have been pulling it back. Issue is the chain on my bike is loose in some spots and tight in others. I replaced the chain and still have the problem. Replaced the cheap rocket chainring with a nicer Sugino messenger chainring and still have the problem. So I guess my question is: Are the cheap crank arms that came with the pista cuasing the chain to be tight in some areas and loose in others?

Just trying to go through the process of elimination with this annoying problem on my bike.