VIVI FM20UL Facts: 170 Specifications & 54 Highlights
From general information, dimensions, motor & performance & battery & charging to power specs, the VIVI FM20UL electric bike includes 170 reasons it stands out from other electric bikes — see them on Autologr.
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Highlights 54
No extras. Just what matters.Why is VIVI FM20UL better than other electric bikes ?
General Information
- Suitable for Folding Riding
- 10.74 lbs lighter bike for easier handling55.0 lbs vs 65.7 lbs
- Uses Aluminum
- Designed As Unisex for Fit and Styling
- Released In 2025
- Made In China
- Model Name: FM20UL
- Fits Riders Around 5'1" - 6'3"
- 26.35 lbs heavier riders330.0 lbs vs 303.7 lbs
- Recommended For Adult (+16)
- Series/Line: FM Series
- Folding Frame Improves Accessibility and Comfort
Dimensions
- 20.14 inch longer wheelbase for stability64.2 inch vs 44.1 inch
- Allows Handlebar Adjustment in Range 43" - 47"
- 7.38 inch more compact when folded23.0 inch vs 30.4 inch
- Fits Seat Heights Around 29" - 46"
Motor & Performance
- Features A Hub Motor for Optimized Performance
- 402.11 Watt stronger motor for better performance1,000.0 Watt vs 597.9 Watt
- Offers 5 Levels Levels for Varied Riding
- Provides Twist Throttle for Control
- Classified As Class 2 for Legal Compliance
- Rated IP54 for Water Protection
Battery & Charging
- 12.62 miles longer guaranteed minimum distance44.0 miles vs 31.4 miles
- Equipped With Modern Lithium-ion Battery
- 0.5 hr faster charging time5.0 hr vs 5.5 hr
- 4.72 Volt higher voltage for stronger output48.0 Volt vs 43.3 Volt
- 0.48 lbs lighter battery for easier handling7.7 lbs vs 8.2 lbs
- Convenient Battery Side Port Placement
Drivetrain & Transmission
- Equipped With Multi-Speed for Versatility
- Easy-to-Use Trigger Shifter
- Chain Drive Offers Durability and Smoothness
- Wide Range With 7-speed Gears
- Uses Reliable Shimano Tourney Derailleur
- 1.58 % higher efficiency95.0 % vs 93.4 %
- Durable Aluminum Pedals Resist Wear
- Equipped With 7-speed Freewheel for Reliable Shifting
Brakes & Safety
- Strong Disc Brakes Provide Reliable Stopping
- Smooth Mechanical Actuation Offers Better Control
- Uses High-Quality Resin Pads for Strong Braking
Suspension & Comfort
- Riser Bars Provide Good Comfort/Handling
- Equipped With Fork fork for Terrain Control
- Comfort Saddle Suits Long-Distance Comfort
- Saddle With Foam Padding Adds Comfort
Wheels & Tires
- Pneumatic Tires Offer Balance of Comfort and Performance
- 0.91 higher spoke count36.0 vs 35.1
- All-terrain Tread Optimized for Terrain
- Strong, Light Aluminum Rims Improve Ride
- 0.72 inch wider rims3.0 inch vs 2.3 inch
Environmental Resistance
- 1.49 °F higher maximum storage tolerance113.0 °F vs 111.5 °F
- 3.42 °F lower minimum temp tolerance14.0 °F vs 17.4 °F
- 17.14 °F lower minimum storage tolerance-4.0 °F vs 13.1 °F
Quick Take
The essentials that matter—nothing extraA fast snapshot of the VIVI FM20UL, covering its standout specification and what you can expect right out of the box.
VIVI FM20UL is a versatile and stylish electric bike designed for dependable everyday riding and comfortable longer journeys. Featuring a responsive motor, efficient battery system, and a well-engineered frame, it delivers smooth performance, stable handling, and reliable control across varied terrain. With its modern design, quality components, and rider-focused ergonomics, the VIVI FM20UL offers an exceptional combination of practicality, comfort, and an enjoyable ride experience.
Specifications & Facts 170
Specs measured. Drama avoided.Price matters, but so do the specs. The VIVI FM20UL electric bike includes 170 you need to see — like general information, dimensions, motor & performance & battery & charging and how it stacks up in the real world.
General Information 14
VIVI FM20UL Intended Use
What is the intended use?
70 VIVI FM20UL 0 Votes Folding
40 Electric Bikes in this range Urban/Commuter
This bike is designed for folding, enhancing portability and space-saving storage.
Primary riding scenarios the bike is optimized for.
VIVI FM20UL Bike Weight
What is the bike’s weight?
The bike weight is 55 lbs (24.95 kg), which is typical for folding electric bikes balancing portability and battery capacity.
total weight affects portability and handling.
VIVI FM20UL Frame Material
What is the frame material?
60 VIVI FM20UL 0 Votes Aluminum
40 Electric Bikes in this range Aluminum
The frame is made of aluminum, contributing to a lightweight yet sturdy build ideal for folding e-bikes.
Core frame material impacts weight, stiffness, and durability.
VIVI FM20UL Gender Target
What is the gender target?
100 VIVI FM20UL 0 Votes Unisex
66 Electric Bikes in this range Unisex
The design is unisex, making it suitable for all rider genders.
Declared target audience (fit/ergonomics/cosmetics).
VIVI FM20UL Year of Release
What is the release year?
89 VIVI FM20UL 0 Votes 2025
52 Electric Bikes in this range 2025
The bike is a recent release model from the year 2025, featuring up-to-date technology.
Model year indicates recency of design/features.
VIVI FM20UL Country of Origin
What is the country of origin?
60 VIVI FM20UL 0 Votes China
47 Electric Bikes in this range China
Manufactured in China, the bike benefits from established production facilities specializing in e-bikes.
Where the product is manufactured/assembled.
Dimensions 5
VIVI FM20UL Folded Width
What is the folded width?
Folded width is 33 inches (83.82 cm), making the bike compact and easy to store or transport.
Bike width when folded for storage.
VIVI FM20UL Wheelbase Length
What is the wheelbase length?
Wheelbase length is 64.2 inches (163 cm), contributing to stability during riding.
Distance between front and rear wheel axles.
VIVI FM20UL Handlebar Height Range
What is the handlebar height range?
69 VIVI FM20UL 0 Votes 43" - 47"
55 Electric Bikes in this range Adjustable
Handlebar height ranges from 43 to 47 inches, allowing a comfortable setup for riders of different heights.
Adjustable height range of the handlebar stem.
VIVI FM20UL Folded Depth
What is the folded depth?
Bike length when folded down.
VIVI FM20UL Seatpost Height Range
What is the seatpost height range?
69 VIVI FM20UL 0 Votes 29" - 46"
60 Electric Bikes in this range Adjustable
Minimum and maximum seatpost extension for rider fit.
Motor & Performance 18
VIVI FM20UL Top Speed
What is the assisted top speed?
The top speed is 22 mph (35.4 km/h), which allows for efficient urban commuting while maintaining safety.
Maximum pedal-assist or throttle-assisted speed.
VIVI FM20UL Motor Position
Where is the motor positioned?
20 VIVI FM20UL 0 Votes Rear
32 Electric Bikes in this range Rear
The motor is positioned at the rear, which often results in better traction and a natural riding feel.
Placement affects handling and traction.
VIVI FM20UL Walk Assist Mode
Does it support walk assist mode?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Walk assist mode helps riders push the bike easily when walking alongside it.
Assists at low speed for pushing uphill.
VIVI FM20UL Continuous Power Rating
What is the continuous power rating?
Continuous power rating of 500 Watts supports efficient and sustained motor performance.
Sustained motor wattage capability.
VIVI FM20UL Motor Type
What is the motor type?
50 VIVI FM20UL 0 Votes Hub
42 Electric Bikes in this range Hub
Defines drive system layout and efficiency.
VIVI FM20UL Motor Power
What is the motor power?
Continuous rated motor output.
Battery & Charging 15
VIVI FM20UL Range (Min)
What is the minimum range?
Minimum range is 44 miles (70.8 km) on a full charge, suitable for extended urban trips.
Minimum expected riding distance per charge.
VIVI FM20UL Charger Output Power
What is the charger output power?
The charger output power of 96 Watts allows for efficient battery charging.
Wattage rating of included charger.
VIVI FM20UL Battery Type
What is the battery type?
90 VIVI FM20UL 0 Votes Lithium-ion
58 Electric Bikes in this range Lithium-ion
Defines chemistry of the battery pack.
VIVI FM20UL Battery Capacity
What is the battery capacity?
total energy storage of the battery.
VIVI FM20UL Charging Time
What is the charging time?
Time to reach full charge.
VIVI FM20UL Range (Max)
What is the maximum range?
Max achievable distance per charge.
Drivetrain & Transmission 11
VIVI FM20UL Gear Type
What is the gear type?
80 VIVI FM20UL 0 Votes Multi-Speed
43 Electric Bikes in this range Multi-Speed
Gear type is multi-speed, allowing for better adaptability to varied terrain and rider preferences.
Defines whether the drivetrain has one or multiple gears.
VIVI FM20UL Chain/Belt Guard
Does it include a chain/belt guard?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Includes a chain/belt guard for safety and reduced drivetrain wear.
Protection cover prevents dirt and clothing snags.
VIVI FM20UL Shifter Type
What type of shifter is used?
69 VIVI FM20UL 0 Votes Trigger
43 Electric Bikes in this range Trigger
Input style for changing gears.
VIVI FM20UL Chain/Belt Drive Type
What is the drive type?
50 VIVI FM20UL 0 Votes Chain
29 Electric Bikes in this range Chain
Type of primary drive system.
VIVI FM20UL Gear Range
How many gears does it have?
64 VIVI FM20UL 0 Votes 7-speed
42 Electric Bikes in this range 7-Speed
Number of selectable gears available.
VIVI FM20UL Derailleur Brand/Model
What is the derailleur brand/model?
62 VIVI FM20UL 0 Votes Shimano Tourney
34 Electric Bikes in this range Shimano
Specific derailleur spec for maintenance/compatibility.
Brakes & Safety 12
VIVI FM20UL Brake Type
What is the brake type?
100 VIVI FM20UL 0 Votes Disc
62 Electric Bikes in this range Disc
Main brake technology used.
VIVI FM20UL Brake Actuation
What is the brake actuation?
50 VIVI FM20UL 0 Votes Mechanical
45 Electric Bikes in this range Hydraulic
Method of brake force transfer.
VIVI FM20UL Headlight
Does it have a headlight?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Front light for visibility.
VIVI FM20UL Taillight
Does it have a taillight?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Rear light for safety.
VIVI FM20UL Brake Rotor Size
What is the brake rotor size?
Diameter of brake rotors for disc systems.
VIVI FM20UL ABS (Anti-lock Braking System)
Does it have ABS?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Prevents wheel lockup during braking.
Suspension & Comfort 9
VIVI FM20UL Rear Suspension Type
What is the rear suspension type?
10 VIVI FM20UL 0 Votes None
18 Electric Bikes in this range None
This model does not include rear suspension, which may reduce weight but slightly affect comfort on rough terrain.
Defines rear shock or rigid frame.
VIVI FM20UL Suspension Travel (Front)
What is the front suspension travel?
Front suspension travel of 2.36 inches (6 cm) offers some shock absorption for smoother rides on uneven surfaces.
Maximum fork compression distance.
VIVI FM20UL Handlebar Type
What is the handlebar type?
50 VIVI FM20UL 0 Votes Riser
32 Electric Bikes in this range Riser
The riser handlebar type provides an upright riding position for better control and comfort during commutes.
Shape of handlebars influencing ergonomics.
VIVI FM20UL Front Suspension Type
What is the front suspension type?
50 VIVI FM20UL 0 Votes Fork
28 Electric Bikes in this range Fork
Type of front fork or rigid setup.
VIVI FM20UL Suspension Lockout
Does it have suspension lockout?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Allows suspension to be locked rigid for efficiency.
VIVI FM20UL Saddle Type
What is the saddle type?
40 VIVI FM20UL 0 Votes Comfort
27 Electric Bikes in this range Comfort
Style of saddle affecting ride posture.
Wheels & Tires 11
VIVI FM20UL Wheel Size
What is the wheel size?
Diameter of the wheels.
VIVI FM20UL Tire Width
What is the tire width?
Cross-sectional width of the tire.
VIVI FM20UL Tire Type
What is the tire type?
80 VIVI FM20UL 0 Votes Pneumatic
46 Electric Bikes in this range Pneumatic
General construction of tires.
VIVI FM20UL Spoke Count
What is the spoke count?
Number of spokes per wheel.
VIVI FM20UL Tire Tread Pattern
What is the tire tread pattern?
90 VIVI FM20UL 0 Votes All-terrain
48 Electric Bikes in this range All-terrain
Defines tread style for grip/terrain.
VIVI FM20UL Rim Material
What is the rim material?
80 VIVI FM20UL 0 Votes Aluminum
49 Electric Bikes in this range Aluminum
Main material used for rims.
Electronics & Display 13
VIVI FM20UL Display Type
What is the display type?
69 VIVI FM20UL 0 Votes LCD
46 Electric Bikes in this range LCD
An LCD display offers clear and bright readouts of speed, battery level, and other metrics.
Kind of screen technology used.
VIVI FM20UL Display Location
Where is the display located?
29 VIVI FM20UL 0 Votes Center
30 Electric Bikes in this range Center
The display is centrally located for easy visibility and quick access to ride information.
Position of the display unit.
VIVI FM20UL Speedometer
Does it have a speedometer?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
A speedometer is included to aid riders in monitoring their speed accurately.
Indicates current riding speed.
VIVI FM20UL USB Charging Port
Does it have a USB charging port?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Includes a USB charging port which is convenient for charging devices while on the go.
Lets rider charge devices while riding.
VIVI FM20UL Trip Meter
Does it have a trip meter?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
A trip meter is featured for tracking distance traveled during rides.
Measures distance of each ride.
VIVI FM20UL Display Size
What is the display size?
Diagonal measurement of display.
Connectivity & Smart Features 8
VIVI FM20UL Bluetooth Connectivity
Does it have Bluetooth connectivity?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Enables pairing with smartphones and accessories.
VIVI FM20UL Wi-Fi Connectivity
Does it have Wi-Fi connectivity?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Allows wireless updates and app features.
VIVI FM20UL ANT+/Fitness Sensor Support
Does it support ANT+ fitness sensors?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Compatible with fitness trackers and sensors.
VIVI FM20UL Smartphone Mount
Does it include a smartphone mount?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Built-in or included phone holder.
VIVI FM20UL Navigation Integration
Does it support navigation integration?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Links to GPS or apps for route guidance.
VIVI FM20UL Ride Data Logging
Does it log ride data?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Tracks ride history and stats digitally.
Accessories & Convenience 12
VIVI FM20UL Kickstand
Is a kickstand included?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Includes a kickstand, which is essential for convenient parking.
Indicates whether a kickstand comes standard.
VIVI FM20UL Kickstand Position
Where is the kickstand positioned?
60 VIVI FM20UL 0 Votes Side
45 Electric Bikes in this range Rear
The kickstand is positioned at the side, allowing easy deployment and parking stability.
Location of the kickstand mount.
VIVI FM20UL Fenders
Are fenders included?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Protects rider from splashes and debris.
VIVI FM20UL Rear Rack
Is a rear rack included?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Indicates if bike comes with a cargo rack.
VIVI FM20UL Basket Compatibility
Is it basket compatible?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Supports front or rear basket attachment.
VIVI FM20UL Child Seat Compatibility
Is it child seat compatible?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Allows mounting a child seat safely.
Warranty & Support 8
VIVI FM20UL Warranty Length (Frame)
What is the frame warranty length?
Coverage period for the bike frame.
VIVI FM20UL Warranty Length (Motor)
What is the motor warranty length?
Warranty coverage for the motor.
VIVI FM20UL Warranty Length (Battery)
What is the battery warranty length?
Duration of coverage for the battery.
VIVI FM20UL Warranty Length (Electronics)
What is the electronics warranty length?
Coverage for onboard electronics/display.
VIVI FM20UL Extended Warranty Availability
Is extended warranty available?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Option to purchase longer coverage.
VIVI FM20UL Spare Parts Availability
Are spare parts available?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Indicates whether spare parts are offered.
Safety & Protection 12
VIVI FM20UL Safety Lock Switch
Does it have a safety lock switch?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Featuring a safety lock switch, this bike enhances security by allowing the motor to be disabled when necessary.
Lockout switch prevents accidental activation.
VIVI FM20UL Soft Start Feature
Does it have a soft start feature?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
A soft start feature helps prevent sudden jolts during acceleration, improving rider safety and comfort.
Limits sudden torque on startup for smoother control.
VIVI FM20UL Overload Protection
Does it include overload protection?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Prevents damage from excessive electrical draw.
VIVI FM20UL Vibration Control
Does it include vibration control?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
System or design to reduce vibrations.
VIVI FM20UL Noise Level
What is the noise level?
Overall sound output during operation.
VIVI FM20UL Crash Sensor
Does it have a crash sensor?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Detects crashes and may trigger alerts.
Environmental Resistance 10
VIVI FM20UL Operating Temperature Range (Max)
What is the maximum operating temperature?
The operating temperature maximum is 104°F (40°C), ensuring the bike performs reliably within this range.
Maximum safe operating temperature.
VIVI FM20UL Storage Temperature Range (Max)
What is the maximum storage temperature?
Storage temperature max is 113°F (45°C), indicating the temperature limit for safe storage to protect battery and electronics.
Maximum recommended storage temperature.
VIVI FM20UL Operating Temperature Range (Min)
What is the minimum operating temperature?
Minimum safe operating temperature.
VIVI FM20UL Storage Temperature Range (Min)
What is the minimum storage temperature?
Minimum recommended storage temperature.
VIVI FM20UL Dust Rating
What is the dust rating?
0 VIVI FM20UL 0 Votes IP5X
30 Electric Bikes in this range IP5X
Protection against dust ingress.
VIVI FM20UL Water Immersion Rating
What is the water immersion rating?
0 VIVI FM20UL 0 Votes IPX4
16 Electric Bikes in this range IPX4
Depth resistance beyond splash.
Ergonomics & Adjustability 12
VIVI FM20UL Adjustable Handlebar Height
Is the handlebar height adjustable?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
An adjustable handlebar height provides ergonomic customization, enhancing rider comfort across different preferences.
Handlebars can be moved vertically.
VIVI FM20UL Quick-Release Seatpost Clamp
Does it have a quick-release seatpost clamp?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Equipped with a quick-release seatpost clamp for effortless saddle height adjustments.
tool-free seatpost adjustment.
VIVI FM20UL Grip Diameter Options
What grip diameter options are offered?
0 VIVI FM20UL 0 Votes Medium
10 Electric Bikes in this range Medium
The medium grip diameter option fits most hand sizes comfortably for controlled rides.
Different grip thicknesses for hand comfort.
VIVI FM20UL Adjustable Stem
Does it have an adjustable stem?
No 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Stem can be raised/lowered or swapped for comfort.
VIVI FM20UL Adjustable Saddle Height
Is the saddle height adjustable?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Seatpost can be raised/lowered.
VIVI FM20UL Adjustable Seat Angle
Is the seat angle adjustable?
Yes 0Votes VIVI FM20UL
Yes Electric Bikes in this range
Saddle tilt can be modified.
Surveys
Because hot takes deserve votes.VIVI FM20UL Battery Life
How long does the battery of this electric bike last on a single charge?
VIVI FM20UL Charging Time
How long does it take to fully charge this electric bike?
VIVI FM20UL Riding Comfort
How comfortable is this electric bike to ride for daily use?
VIVI FM20UL Speed and Performance
How fast can this electric bike go at top speed?
VIVI FM20UL Durability and Build
How durable is this electric bike over long-term use?
VIVI FM20UL Ease of Use
How easy is it to use this electric bike for everyday riding?
VIVI FM20UL Pricing
How do you feel about the price of your electric bike?
VIVI FM20UL Design and Style
How appealing is the design and style of this electric bike?
VIVI FM20UL Motor Power
How powerful is the motor performance of this electric bike?
VIVI FM20UL Weight
How heavy is this electric bike to lift or carry?
Guides 1
Yes, we brought proof.Videos 1
VIVI FM20 20 Inch Folding Electric City Bike Assembly Guide (VID)
Reviews 0
The good, the bad, and the brutally honest.Average Rating
Discussions 0
Thoughts, takes, and hot debates.Awards 0
Only the best made it here.Collections 0
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