Ok, so this may be easier for me than trying to contact various people about this bike. Before last Thursday I had no idea that I'd ever have a Powell mini bike nor did I care. Well, as usual, once it was in front of me it grew on me quickly. So this one is a fairly solid roller but with some very odd things going on. The letter code is an "MO" for starters. I've seen where the "M" stands for a 3.5 horse Tecumseh but what does the "O" stand for after that. This bike had the rear tire changed at some point in it's life. The problem with that is that the right side rim is not a brake style. Every bike I've seen since digging through pictures upon pictures used the rear wheel half as a brake drum. So was there another style brake that didn't use the wheel half? I can't imagine somebody doing away with it and having a normal wheel half handy but who knows. The next thing about this one is that it has the factory rear fender mounting brackets. It didn't come with the fenders though. The picture shows the way I got it and my intentions are pretty minimal for the moment. It has a 5 horse snow blower motor on it that I'll fix up and use for now. I plan on making it a rider as simply as possible for the time being and have some fun with it. Long term I'll try to either locate or fabricate the missing pieces to get it back to where it began.