How is the easiest/best way to get replacement parts for a H1 rear hub? I'm an idiot and kinda went ape at some point in the past and stipped one of the three set screws on the adjusting collar. I can snug up everything (except that screw...it will tighten a little...not much) but after a couple of weeks it all loosens back up. It's not currently keeping me from riding but just a minor annoyance that I'd like to remedy. Anyhoo, I sent a message directly to WI but I'm not sure if that the best route or if anyone might know of somewhere that keeps spare parts.