I am going to be building custom wheels for my upcoming project, using a moped hub for the rear wheel. The moped hub is considerably wider than a bicycle hub, leading me to hypothesize that the pedal chain will not line up with the rear wheel. I'm not concerned about the engine drive chain alignment, as I'm using a 79cc predator and I will be able to adjust the drive chain to whatever position I need. What I am looking for is advice on how to build a bottom bracket that is adjustable as well. I've done some looking around and I know there are some bottom bracket kits available, but I'd prefer to source the parts myself and assemble to keep the cost lower, so if anyone can help me out with a list of parts or at least point me in the right direction of how to figure something out, that would be great. The bike is currently setup for a one piece crank but I have no problem converting if necessary. Any help/advice would be greatly appreciated.