[Re-defining Personal Urban Mobility] The DYU D3F electric bicycle is a compact transportation tool specifically designed for modern urban life. It ingeniously combines the convenience of electric assistance with the flexibility of a traditional bicycle. This model is particularly suitable for commuters, students, and urban residents, addressing the "last mile" problem, daily shopping, or leisure cycling. [Compact and Portable, Seamless Integration in Various Scenarios] One of the biggest highlights of the DYU D3F is its excellent portability. This design enables it to be easily placed in the trunk of a car, carried on the subway or bus, or stored under an office chair or in a corner of the home, almost not occupying any additional space. Its weight of 19 kilograms is considered lightweight in electric bicycles, making it convenient for short-distance carrying. [Practical Power, Meeting Daily Needs] The 250W motor of D3F provides just the right assistance power. With a maximum speed of 25 kilometers per hour, it ensures both the efficiency of commuting and the safety and compliance of the ride. The motor provides smooth assistance during start-up and climbing, effectively reducing the burden on the user's pedaling. Whether in assist mode or pure electric mode, it can be flexibly switched according to user needs, capable of handling various flat roads and gentle slopes in the city with ease. [Dual-mode Range, Flexible Response to Different Needs] D3F offers two range modes to meet different scenarios. In the more energy-efficient assist mode, the range can reach 50 kilometers, which is ideal for longer-distance leisure cycling or commuting. Users can enjoy the fun of cycling while receiving assistance. The 36V 10Ah lithium-ion battery takes 5-6 hours to charge, usually fully charged within one night, making it convenient to use. The addition of the BMS battery management system ensures the safety and stability of charging and discharging processes. [Safety Details, Guarding Every Journey] Safety is the cornerstone of the D3F design. The front and rear dual-disc brake system provides strong and reliable braking power, ensuring rapid and smooth braking in various road conditions. The IP54 waterproof rating means it can withstand water from all directions, unafraid of wet roads or occasional light rain, increasing the reliability of use. The integrated front and rear headlights significantly enhance visibility at night and in low-light environments, ensuring cycling safety. [The Ideal Mobile Companion for Urban Life] In summary, the DYU D3F electric bicycle is a product that achieves an outstanding balance in portability, practicality, and safety. It does not overly pursue high performance but precisely focuses on the core daily needs of urban users. [Product Specifications] Model: D3F Power: 250W Battery: 36V 10Ah Default Speed: 25 km/h Range: 50 km Charging Time: 5-6 hours Tires: 14 Inch Brakes: Front and rear dual-disc Waterproof Rating: IP54 Grade: 15° Net Weight: 19.7KG Load Capacity: 120kg Product Size: 1170*500*990mm Folding Size: 1170*200*720mm Packaging Size: 1195*230*610mm