The Step Through Frame design, is a super convenient ebike to get on and off of. The adjustable seating makes the e-bike fit you better. Step-thru Frame Design: super convenient to get on/off. It has a Removable 36V13Ah Lithium Battery allows you to travel longer travel distances, and easy to charge. It has the 26 inch wheel size which makes it perfect for city rides. The 3 Level of Pedal Assist + Twist Throttle helps you switch between different modes freely. The Max 500W Motor makes for reliable performance.