This performs perfectly through the city or on light off-road trails. Whether you are a commuter, senior, casual rider, or sports fan, this is the bike built for everyone. The powerful 36V 12.5Ah Lithium battery can be dismounted and charged anywhere on the go. The charger has a safety design to prevent over-charged to use. 20'' Fat Tire - Car's Great Partner As a folding bicycle, its upper tube, the handlebar stem, even the pedals are foldable. It can take on many tasks you would not expect from a Portable &folding bikes such as hauls from the grocery store, challenging terrain, and rough roads without breaking a sweat. 4 WORKING MODES- A powerful and cost-effective mountain e-bike. Pedal Assist Mode: The motor will assist you with a moderate amount of power as you pedal the bicycle. Fully Electric Mode: Twist the throttle in any increments of power you desire to power the motor of the bicycle. Pedal Mode: Pedal the bicycle normally as you would any bicycle. Booster Mode: The Ebike will travel at 6 km/h (3.73miles/h), easy to push.