Well I made myself a little mobility bike/scooter out of a, broken very little, blue frame I have. I'm going to use it for short errands until my elbow heals all the way. Ii's an R-Martin LX1 bike frame with an e-bikekit rear DD kit and a 48V 10Ah lithium ion pack. There is no chain or rear derailer and it only has front brakes. I've paralleled the cranks arms and use them as foot pegs. I tried to seize up the bottom bracket so that they wouldn't swing freely but I can't. I think I'm going to bungee the crank arms forward so that they don't swing as much and will have give when I go over bumps to cut down the jarring on my legs. The part of the frame that's broken is the tapered piece that was welded onto the seat tube for the seat post. It broke off at the weld so there's no way to secure the seat post currently. I just stick my extended length seat post down into the frame and have fun swiveling slightly on the seat. I wouldn't be able to pedal it if it could be pedaled. The position of the handle bars keep my elbows bent in so my left elbow doesn't hurt when I ride it. The rear dropouts are really widely spaced so until I get a bunch of washers/spacers, I'm using 2 vice grips on the axle to center the wheel and tighten the nuts down. Here's some pics:
