caught, between a chain and a shaft, two methods of the same process, and wondering which one to go with, to continue on, to carry the fire and the flame, the bags and the packs, and hoping for a fix, if slight. but the easy and care and lack of worry, chain jumped on me yesterday, easy enough to fix, but my fingers were dirty, those things don't happen on a shaft, don't happen when things just whir away, but one bike works, the other doesn't, and I still get to work via two wheels instead of 4, 6, 8 or more. It's just too easy.