The weight of a Bafang motor on a City and Mountain bike is 4.5 kg. (10 lbs.). On the Fat Bike, Folding Bike, and Folding Bike Step Thru the motor weights 4.1 kg. (9 lbs.). On the Fat Mid Drive Bike, the weight is 5.6 kg. (12.3 lbs.). The motor on the Super Bike (and Step Thru) is 10 kg. (22 lbs.).