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Fast Kf9 Single-Motor 350W Folding Fat Tire Electric Bicycle for City Alleys
Product Description
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Basic Information
Model
KF9-Single Motor
Wattage
351-500W
Battery
48V Lithium Battery
Wheel Size
20" Fat Tire
Frame
6061 Aluminum Alloy
Certification
CE, UL2849, UKCA
Max Speed
20-40km/h
Max Loading
150kg
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Product Description
Premium Folding E-Bike
Discover the ultimate urban mobility solution with this premium foldable electric bicycle, engineered for commuters, travelers, and outdoor enthusiasts. This folding e-bike combines portability with performance, featuring a quick-fold mechanism that collapses in seconds, a powerful brushless motor for effortless hill climbing, and a removable lithium-ion battery delivering extended range.
The intelligent LCD display offers real-time riding data with multiple pedal-assist modes plus full throttle control, allowing you to customize every journey. Built with a durable yet lightweight aluminum alloy frame, equipped with all-terrain fat tires, front suspension, and reliable disc brakes.
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Versatile Applications
🏙️ Urban Commuting
Bypass traffic congestion and crowded public transport. The ultra-portable design is perfect for multi-modal commuting—ride to the station, fold it up, and board your train.
🏠 Space-Saving
Ideal for city dwellers with limited storage. Fits easily in closets, under desks, or in small hallways without requiring dedicated bike racks.
🏕️ Outdoor Adventure
Enhance your camping experience. Easily transport it in your car trunk or RV to explore national parks and scenic routes with ease.
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Technical Parameters
| Feature | Specification |
|---|---|
| Model | KF9-Single Motor |
| Motor | 48V 350W Brushless Geared Rear Hub Motor |
| Battery | 48V 17.5AH Lithium Battery |
| Pure Electric Range | Around 40 KM |
| Pedal Assist Range | Around 60 KM |
| Brake System | Hydraulic Disc Brake with Power Cut-Off |
| Drivetrain | 7-Speed |
| Display | Multifunctional Color LCD |
| Tires | 20" x 4.0" Fat Tire |
| Suspension | Aluminum Alloy Suspension Fork |
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Detailed Gallery
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Frequently Asked Questions
What is the maximum range on a single charge?
The KF9-Single Motor offers approximately 40 KM in fully electric mode and up to 60 KM when using the pedal-assist mode, depending on rider weight and terrain.
How long does it take to fold the bike?
The bike features a quick-folding mechanism that allows it to be collapsed in just a few seconds, making it perfect for storage or public transport.
Is the battery removable?
Yes, the 48V 17.5AH lithium battery is removable, allowing you to charge it either on the bike or separately at your convenience.
What safety features are included?
The bike is equipped with hydraulic disc brakes featuring a power cut-off function, an integrated LED headlight powered by the main battery, and a multifunctional color LCD display for real-time monitoring.
What are the battery safety standards?
We use high-quality battery packs with premium Battery Management Systems (BMS) to protect against overcharge and short circuits. Our batteries are rigorously tested to meet UN38.3 international standards.
Does the bike come assembled?
The e-bike comes 85% pre-assembled. It includes easy-to-follow instructions to help you complete the final setup quickly and safely.
