The GeoOrbital wheel
Make pedaling your bike optional by replacing your regular front wheel with a GeoOrbital.
In 60 seconds and without tools you can add electric power to a regular bicycle. Get around on your own bike, on your own schedule and without exerting more energy than you like. Traveling by bike is better for you and for the environment, not to mention it's a ton of fun.
"The way it works is simple: Just snap off the front wheel of any bike and attach [GeoOrbital's] special electric wheel in its place." - Forbes