An E-bike we built in 2 weeks. Top speed is 60 MPH. The acceleration is unmatched. I am often challenged by cars for a race and never been beat. 15 horsepower max Briggs and Stratton motor running at 48V. In this video we compare it to a performance moped. We can not use it to its full potential, for risks of another broken chain. We have been through 5 chains, and 2 derailleurs.