The Powerfly 4 625 is an electric mountain bike that has been upgraded with a more powerful battery to increase its range. It still features the user-friendly Removable Integrated Battery (RIB) system, which makes it easy to remove and reinstall the battery. Additionally, it includes all the necessary components to make it the perfect choice for anyone looking to experience the fun of riding a pedal-assist bike, whether on roads or off-road trails.