35 years ago there weren’t any ebike motors. You can see in this picture how big, bulky and heavy the motor on the Solar Tandem was. At the time this was a state of the art electric motor. The motor was easily over 20 pounds in weight putting out around 400 watts of power. Today you can get a sophisticated ebike motor that weighs under 10 pounds and puts out around 8000 watts. What incredible improvements have been made!