Saw this on the web today:
Homemade Electric BicycleBy chance while I was researching the Bosch Generators on the Web I saw my first Electric Bicycle. I don't know who's site it was or what it had to do with the generators, but I was hooked and had to build one. Most were ZAP bolt-ons or some form of friction drive on the rear or front wheel. I would have none of it! No off the shelf controllers, no tried and true plans or sub assembly's. Every thing from scratch, almost including the wheel.