These are the more sophisticated of the two types of e-bike motor (the other being hub drive). This system is far more efficient than the hub drive system and can deliver more climbing power and far more mileage – practically double. Both the human pedal power and the electrical motor power drive the bicycle chain at the same time.
This makes the bike a much smoother ride as well. Around 90% of the electric bikes that you will find at Energise E-bikes are crank drive e-bikes. These include motors by Bosch, Yamaha, Shimano and Fazua.