Heavy lube and cold temps had that effect on my drivetrain in winter...I think the free hub has more drag than a standard free hub. Did you strip your chain of the factory oil they put on it?
I’d apply several rounds of a light lube with lots of solvent in the formula. Something like clean ride or T9. That might eliminate the resistance causing the slack chain. I had considered going to a clutch derailleur but I always forget because I don’t have issues until I switch to heavy lube and get cold temps (sub freezing) Hope that helps? Alex -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/7c029a59-22b3-4716-a47e-a97e2b443bc1%40googlegroups.com.