The GeoOrbital wheel
The GeoOrbital wheel replaces a standard bicycle front wheel to turn your bike into a powerful electric bike in under 60 seconds. Commute on your bike, on your own schedule and without exerting more energy then you see fit. No more traffic. No more looking for parking or waiting for the bus. Getting around by bike is better for you and for the environment, not to mention it's a ton of fun.
It's simply the "Best design I've seen to turn your bike electric in 60 seconds" - Bill Weir, CNN