Cybervelo EK4 Folding Electric Bike, 20-Inch Fat Tires

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Product guide

Cybervelo EK4 Folding Electric Bike, 20-Inch Fat Tires

The Cybervelo EK4 is a folding adult electric bike with 20-inch fat tires, front suspension, a removable battery, and a seven-speed drivetrain. The listing describes a 48V 20.8AH battery and up to 80 miles of range, but its range and speed claims vary across listing sections, so treat them as estimates rather than guaranteed riding results.

At a glance

Removable battery is described as easy to take indoors for charging.
Folding frame, front suspension, and 20-inch fat tires are aimed at mixed paved and unpaved riding.
Seven-speed drivetrain with twist-grip shifting and five listed pedal-assist levels.
LCD display is described as showing speed, mileage, and battery power.

Price

$509.15Save 15%

Reference price: ~~$599.00~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Removable battery can be charged separately from the bike, according to the listing.
Foldable design may make storage and transport easier than a non-folding bike.
Front suspension, fat tires, and dual disc brakes are specified for varied riding surfaces.
A charger, pump, tool kit, and user manual are listed as included components.

Cons

The listing gives a high-carbon-steel frame and an approximate 72-pound weight including the battery, which may make carrying the bike challenging.
The claimed long range depends on conditions and assist level, and customer feedback reports mixed battery-life experiences.

Technical specifications

39 specifications

Identity
Brand	Cybervelo
Model	EK4

Display and video
Screen technology listed	LCD

Power and battery
Power configuration	Electric
Battery life listed	5.33 hours
Battery voltage and capacity listed	48V 20.8AH
Battery energy listed	6 kwh
Battery	Removable

Motor and riding
Motor power in title	750W
Wattage in details	1160 watts
Speeds	7
Electric assist type	pedelec
Gear shifter	Twist Grip
Drivetrain	Derailleur
Riding modes	3 class modes
Pedal assist levels	five available levels of pedal assist
Top speed in listing FAQ	20 MPH
Range claim in title	80 Miles Max Range
Range claim in listing FAQ	80-100 miles per charge

Frame, wheels and fit
Bike type	Electric Bike
Folding	Foldable
Wheel size	20 inches
Wheel width	3 inches
Frame material	High Carbon Steel
Wheel material	Aluminum
Size	Medium
Minimum user height listed	5.3 inches
Age range	Adult
Weight including battery listed	approximately 72 pounds
Weight capacity listed	330 pounds

Ride, brakes and equipment
Suspension type	Front
Brake style	Disc
Additional features	Dual Disc Brake, Fat Tire, Foldable
Intended terrain listed	Mountain Terrain, Paved Roads, Unpaved Trails
Color	Orange
Seat material	Polyurethane (PU)
Fender material	Plastic
Assembly claim	90% pre-assembled
Warranty description	1 Year

What to know before buying

Listing details to confirm

Listing details are contradictory or unconfirmed: motor power appears as 750W in the title but 1160 watts in the details, the speed is given as 20 MPH in the FAQ but 30+MPH elsewhere, and range is variously stated as up to 80 miles or 80-100 miles. The battery listing also gives 48V 20.8AH alongside 6 kwh and 5.33 hours, without explaining how these figures relate. Confirm the configuration and expected operating conditions for the specific listing before purchase. The listed minimum user height of 5.3 inches is implausible as written, so seek clarification rather than treating it as a usable fit measurement.

What’s in the box

BatteryIncluded
Power adapterIncluded
PumpIncluded
Tool kitIncluded
User manualIncluded
Two pedalsCheck selected pack
SeatCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Adults seeking a foldable electric bike with fat tires and a removable battery.
Riders who want a seven-speed drivetrain and front suspension for commuting or occasional unpaved routes.
Buyers able to confirm fit and realistic range needs before relying on the listing's performance claims.

Less suited to

Riders who need a verified range or speed figure before choosing a bike.
People who expect to carry a lightweight folding bike up stairs or for long distances.

Cybervelo EK4 Folding Electric Bike, 20-Inch Fat Tires · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 170 ratings

5 stars67%67%
4 stars21%21%
3 stars3%3%
2 stars4%4%
1 star5%5%

Customer feedback describes the bike as well-constructed and easy to assemble, with positive reports about ride smoothness, hill handling, and beginner suitability. Battery life is mixed, with some customers satisfied and others saying it does not hold a charge as long as expected. That concern matters given the listing's extended range claims, which also vary by section and are stated to depend on riding conditions.

Positive themes

Customers describe the bike as well-constructed and easy to assemble, with clear instructions.
Feedback mentions a smooth ride, hill handling, and suitability for first-time riders.

Mixed feedback

Battery life receives mixed feedback, including reports that charge duration falls short of expectations.

Frequently asked questions

How far does the Cybervelo EK4 go on one charge?

The listing makes different claims, including up to 80 miles and 80-100 miles per charge. It also says results depend on terrain, rider weight, and assist level, so confirm expected range for your conditions.

What speed does this bike reach?

The listing FAQ says up to 20 MPH, while another product section says 30+MPH. These claims conflict, so verify the applicable speed for the specific configuration.

Can the battery be removed for charging?

Yes. The listing describes a detachable battery that can be removed and charged indoors.

What is included?

The listed contents include a battery, charger, pump, tool kit, and user manual. The feature text also says the bike is delivered 90% pre-assembled and includes two pedals and a seat.