Going downhill on a mountain bike can be a lot of fun. Going uphill, not so much, before the Ego-Kit that is. Now going uphill can be as much fun as going downhill. The Ego Kit is an electric motor you can install on your bike to help you go uphill effortlessly. When not going uphill, it can reach speeds up to 43 mph. We believe the Ego-Kit will quickly become indispensable to any rider who owns it.