1. The frame and handlebars feature a dual-folding design, making the bike compact and easy to carry. 2. The handlebars and seat post are height-adjustable, accommodating a wide range of rider heights. 3. Equipped with a suspension fork and a suspension seat post, the dual-suspension design ensures a high level of comfort. 4. Smart LCD display with fault detection and multi-function display; the color screen provides clearer visibility. 5. 5-speed electric assist combined with 7-speed mechanical shifting, suitable for various road conditions. 4. Equipped with a 5-speed speedometer for an enhanced riding experience. 5. Rear rack battery design ensures balanced front-to-rear weight distribution, providing a more stable ride. 6. The folding electric bicycle is equipped with a high-brightness front light and a safety warning tail light to improve the safety of night riding. The rear battery compartment includes a built-in LED taillight, making riding safer and more stylish. Brand: SAMEBIKE Model Name: CY20 Pro Age_group: 14-99 Frame:20""Aluminum alloy folding frame Front fork: suspension fork Battery:48V13AH(624wh) lithium battery (Rear shelf battery) Motor:48V749W High speed breathless gear motor Derailleur:SHIMANO 7 Speed Meter: LCD meter Brake:mechanical disc brake Seat tube: Shock seat tube Tires: 20""*3"" CHAOYANG tires Rim:Spoke rim Mud plate: PVC Mud plate Mobile phone holder: USB 2.0 Mobile phone charging Others: vehicle waterproof connector + quick disassembly plug Light group: Front LED light, rear LED brake tail lights, wheel reflectors Rear carrier: High carbon steel thickened rear carrier Pure Electric Mode:40km Moped Mode: 80km Maximum speed: 20 mph Dimensions & Weight Package Dimensions: 55.91 in*9.06 in*25.39in Package Weight: 81.57 Ib Product Weight: 68.34 Ib Handlebar Height: 41" - 48" After-sales Support Return and exchange: 30 days Warranty period: 1 year If you encounter any problems, please feel free to contact us and attach pictures or videos. We will respond within 24 hours. SAMEBIKE supports returns and exchanges within 30 days and 1-year warranty. If you encounter problems, please feel free to contact us and we will respond within 24 hours. Please keep the original packaging of the electric bike for a period of time in case of return. If you need to return an item, please feel free to contact us. Please do not return items yourself to avoid package loss. The max speed and max mileage of an electric bike depend on many factors, including: rider weight, riding surface, slope, ambient temperature, battery power, etc.