Homemade E-Bike

During my year abroad at Tübingen University in the breathtaking hills of Baden-Württemberg, I decided to make a electric bike from scratch. Using a used bike bought on the German equivalent of craigslist and a motor kit and large Li ion battery, I made my own super fast ebike, capable of tackling any hill, except maybe in the snow and ice with its woefully prepared tires. It had about 1HP of power output, allowing it to quickly take me to and from my classes at the bottom of the hills.