Went into Bayside today to pick up a 520 conversion for the 929 - front & rear sprockets + chain. Old sprockets were showing pretty noticeable wear, and the chain may have actually been the original that came with the bike. Hooray, all the pieces were in stock!
Unfortunately, I left with the wrong rear sprocket (525 instead of 520) and didn't realize it until I was already at EMS and we already had the old chain cut and were putting on the new one.

Kevin drove out within ten minutes of my phone call to bring me an (even nicer!) 520 rear sprocket so my baby didn't have to sit in the shop for days waiting for parts.

I'm very impressed! Thanks, man, that was pretty cool of you. It's even more of a wheelie machine now!