Bisan E- Folding F3 , F4 ve Prime (Ananda 42nm tork motorlu) Katlanır Elektrikli Bisiklet Modelleri

One difference between the F3 and F4 that I didn't mention in the video and that escaped my attention is that the F4, the steel frame model, has a 42-tooth crankset, while the F3 has a 52-tooth crankset. Both have Ananda brand 42 Nm rear hub motors.