In our experience, the biggest disadvantage of a hub drive motor is the additional weight in the hub, making a regular bike feel unbalanced. This is where a crank drive motor benefits as the motor’s weight is over the centre of the bike. However, because a cargo bike has so much weight in the front of the bike, the hub drive motor actually does a good job of helping to balance the weight across the whole bike. Hub drive motors also don’t wear out your chain and gears as much as a crank drive motor and are lower cost. That’s a win for hub drive for us.