The Micargi Lumia features a 250-watt hub motor and a 36-volt electric supply that gives it adequate torque for riding on the pavement and stone-paved sidewalks. . The Lumia carries a 250W mid drive motor and 36V 7.8 Ah Samsung lithium ion battery. With the nice sleek look of a city bike riders also get a very smooth and comfortable ride with the mid drive motor. There are 5 modes of pedal assist with a range of 35 miles depending on which mode is being ridden on. The Micargi Lumia comes paired with 2 keys to lock the battery in place and battery charger. The Micargi Lumia uses the Shimano internal 3 speed hub system and front and rear brakes for maximum braking power.