Another disadvantage of a mid-drive over a hub motor, is the interruption in torque delivery each time you reach the motor's BEMF and have to change gear as you work your way through the available speed range. Hub motors don't suffer the same issue and deliver continuous torque through their entire speed range.
A hub motor's torque does progressively decrease to zero in the upper half of its speed range due to BEMF. However, this still compares well to a mid-drive, where torque in the upper gears is naturally lower due to the effects of 'gearing up'.
A hub motor's torque does progressively decrease to zero in the upper half of its speed range due to BEMF. However, this still compares well to a mid-drive, where torque in the upper gears is naturally lower due to the effects of 'gearing up'.
Last edited: