Looking for an affordable, foldable electric bike that’s practical for commuting and fun for weekend rides? The VIVI FM20UL Electric Bike blends portability, performance, and style in one well-priced package. In this review, we’ll explore everything you need to know — from design and performance to the key pros and cons — to help you decide if it’s the right e-bike for you.
Overview
The VIVI FM20UL is a versatile 20-inch folding electric bike designed for city commuters and casual riders. With a powerful 500W motor, removable 48V battery, and sturdy fat tires, it’s built to handle both urban streets and light off-road paths. The bike’s compact, foldable frame makes it easy to store in small spaces or transport in your car trunk — ideal for apartment dwellers or travelers who need flexibility.
Despite its compact form, the FM20UL doesn’t compromise on ride comfort or stability. The 2.4-inch fat tires, front suspension, and ergonomic saddle work together to smooth out bumps, while the Shimano 7-speed drivetrain lets you tackle moderate hills with ease.
Key Specifications
- Motor: 500W brushless rear hub motor
- Battery: 48V 7.8Ah (374Wh) removable lithium-ion battery
- Top Speed: Up to 22 mph (35 km/h)
- Range: Up to 44–50 miles (70–80 km) with pedal assist; around 22–25 miles in pure electric mode
- Gears: Shimano 7-speed drivetrain
- Brakes: Mechanical disc brakes (front and rear)
- Tires: 20” x 2.4” fat tires
- Frame: Aluminum alloy, foldable design
- Weight: Approximately 55 lbs (25 kg)
- Payload Capacity: Up to 330 lbs (150 kg)
Design
The VIVI FM20UL strikes a great balance between modern design and functionality. Its aluminum alloy frame feels sturdy yet manageable for folding, and the integrated cabling keeps the bike looking clean and professional. The matte finish gives it a sleek, urban aesthetic, while the compact 20-inch wheel setup keeps it agile in tight city spaces.
The folding mechanism is intuitive and efficient, letting you collapse the bike in under a minute for storage or transport. Once folded, it fits neatly in an office corner or the trunk of most sedans. The removable battery adds an extra layer of convenience — you can charge it indoors without moving the entire bike.
The adjustable seat post and handlebars make it suitable for riders between 5’1” and 6’3”, ensuring comfort for a wide range of heights. The fat tires also add stability and grip, giving riders confidence on everything from city pavement to gravel paths.
Performance
Performance-wise, the FM20UL impresses for its price. The 500W motor provides brisk acceleration, especially in pedal-assist mode, and the torque feels strong enough to climb moderate hills without strain. It’s not a mountain e-bike, but it handles city inclines and uneven terrain better than most folding models in its class.
Riders can choose between three pedal-assist levels or engage throttle-only mode for effortless cruising. In pedal-assist mode, the FM20UL achieves up to 44–50 miles of range per charge under optimal conditions. Pure electric mode reduces range but is perfect for short trips or low-effort rides. Charging the 48V battery takes around 5–6 hours, which is reasonable for daily commuting use.
The Shimano 7-speed gear system pairs well with the motor, giving smooth transitions and control at different speeds. The mechanical disc brakes provide reliable stopping power, although they may require fine-tuning after extended use. The suspension fork and fat tires absorb most vibrations, offering a surprisingly smooth and stable ride even over rougher roads.
Pros
- Foldable and portable: Perfect for small apartments, offices, or RV travel.
- Strong 500W motor: Offers quick acceleration and good hill-climbing ability.
- Removable battery: Convenient charging and easy replacement.
- Comfortable ride: Suspension fork and fat tires handle bumps well.
- Good range for price: Up to 50 miles with pedal assist.
- Adjustable and versatile: Fits a variety of rider heights and terrains.
- Affordable value: High feature-to-cost ratio for a foldable e-bike.
Cons
- Weight: At around 55 lbs, it’s not the lightest folding e-bike.
- Basic display: The LCD panel shows only essential data—no app connectivity or color screen.
- Limited throttle range: Full electric mode offers less range than pedal assist.
- Assembly and tuning: Some users report needing minor brake or gear adjustments out of the box.
Final Verdict
The VIVI FM20UL Electric Bike delivers an excellent blend of performance, portability, and price. For under $600, it offers a powerful 500W motor, solid battery life, and a foldable frame that suits both urban commuters and casual weekend riders. It’s not designed for hardcore mountain biking, but it’s an ideal option for those who need a reliable, compact e-bike for daily transportation or leisure rides.
If you want a convenient, comfortable, and affordable e-bike that doesn’t compromise on power or quality, the VIVI FM20UL is a top contender in its category.
⭐ Overall Rating: 4.8 / 5
👉 Click here to buy the VIVI FM20UL Electric Bike
With its blend of practicality, performance, and style, the VIVI FM20UL makes electric commuting easier, greener, and a lot more enjoyable.
Get an extra $30 off the Vivi FM20UL electric bike with coupon code AWIN01 at checkout.
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