I'd like to hijack this thread with a question relevant to the title, if not the OP's actual question:
How do people manage the loooong chain getting wedged between the tyre and chainstay?
I'm loving my Appaloosa so far, but when I'm in my 24t chainring and on a bumpy road, the chain flys around, hits the knobby side of my rear tyre, and gets sucked in and wedged. It's not a great sound.
My first angle of attack is to go for a slightly wider BB. There's a 115mm BB installed now, but the
crank manufacturer recommends a 119mm.
After that, I'm going to try and fashion a kind of chain bash guard
like Ultraromance did on his Atlantis for this very issue. Finally, I'd look at swapping the rear derailleur for one with more tension maybe? I'm using the Deore M591, which looks good, but maybe a different derailleur with stronger spring would lessen the chain flying around?