The Powerfly 4 625 is based on our most affordable E-Mountainbike but comes equipped with a larger battery with a capacity of 625 Wh. Additionally, this bike features our RIB system (Removable Integrated Battery), which allows for easy removal and reinstallation of the battery. It also includes all the other components that make the Powerfly 4 the perfect entry point into the world of E-bikes, whether on or off-road.