How portable is the KETELES KF9 20 Inch Folding Electric Bike?

The frame folds to roughly 90 cm long by 75 cm high, reducing the space it occupies in storage. The manufacturer lists a 38 kg gross weight for the 1000W 35Ah version, so the fold is primarily for storage and vehicle loading rather than daily carrying. Check the boot opening and use two people if the lift is awkward.

Which rider heights suit the KETELES KF9 20 Inch Folding Electric Bike?

KETELES gives an approximate recommended height range of 170–190 cm for the 1000W KF9. The 20 × 4-inch tyres make the bike taller and wider than a typical small-wheel folder, so riders should also confirm they can stand over the frame, reach the brakes and achieve a comfortable knee bend.

How long does the KETELES KF9 battery take to charge?

The official specification gives about 7–8 hours for the 48V 35Ah battery with its 2A charger. Charge the removable pack after it has cooled, on a dry stable surface with ventilation around the charger. A partial top-up is often more practical than waiting until such a large battery is fully depleted.

Is the KETELES KF9 20 Inch Folding Electric Bike easy to assemble?

The KETELES KF9 20 Inch Folding Electric Bike arrives mostly assembled. Final setup normally includes aligning and securing the handlebars, fitting the pedals and completing essential safety checks. Allow approximately 20–30 minutes, or select our professional assembly and PDI service.

Is the KETELES KF9 20 Inch Folding Electric Bike water resistant?

The KETELES KF9 20 Inch Folding Electric Bike is not fully waterproof. Avoid prolonged exposure to heavy rain, and never submerge or pressure wash the bike or its electrical components. After riding in wet conditions, wipe the bike dry and store it in a dry, sheltered location.

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KETELES KF9 20 Inch Folding Electric Bike 48V 35AH KETELES

KETELES KF9 20 Inch Folding Electric Bike

Motor

1000W

Battery

48V 35AH

Speed

40 KM/H

Range

71–90 KM

€1.699,00

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Price shown is the price you payTaxes and standard EU delivery included. No import charges on arrival.

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Returns & cancellations14-day withdrawal rights · Returns policy

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For most eligible online orders, EU consumers have 14 days after delivery to notify us that they wish to withdraw without giving a reason.

Return shipping, exceptions and any deductions allowed by law depend on the circumstances. Your statutory rights remain unaffected.

A separate 30-day return option may apply to eligible unused, unopened items under our policy.

Read our returns policy

EU consumer protectionMinimum 2-year legal guarantee

Your rights under EU consumer law

EU consumer rules provide a minimum 2-year legal guarantee from delivery if a product is faulty or does not match its description. Some countries offer longer protection.

As the seller, we are responsible for qualifying faults. This normally means a free repair or replacement. Where the law provides, you may instead be entitled to a price reduction or refund.

Any manufacturer warranty is an additional benefit and does not replace or reduce your legal rights. To report an issue, contact us with your order number and details of the fault.

Available payment methods are confirmed at checkout.

Road use notice: This bike is over 250W and is for private land/off-road use only. Need a UK road-compliant option? View road legal e-bikes .

Included with your purchase

TrailSurge Warranty & Support

2 yearsminimum EU legal guarantee

Manufacturer warranty included, with direct TrailSurge after-sales assistance.

Manufacturer warranty included · 3 years on the frame and 1 year on original fitted parts from delivery.

Manufacturing fault protection

Eligible faults affecting the frame, motor, controller, battery, charger and factory-fitted components, subject to the applicable terms.

After-sales support

12 months of TrailSurge after-sales assistance.Our UK-based team assists EU customers with troubleshooting, warranty enquiries, eligible parts and repairs.

Manufacturer warranty included

KETELES — The manufacturer’s product-specific warranty also applies. See the terms below.

Your EU consumer rights

At least 2 years of legal guarantee from the seller from delivery, with longer protection in some countries. These rights are separate from any manufacturer warranty.

Need warranty help?

Send us your order number, fault details and clear photos or a video.

Warranty terms & manufacturer detailsHide warranty terms

Cover, claims & exclusions

Commercial warranty terms may exclude normal wear, accidental damage, misuse and unauthorised modifications. These exclusions do not limit your legal rights.

How to request assistance

Contact TrailSurge with your order number, a description of the fault and clear photos or a video. We will assess the issue and explain the available next steps.

KETELES manufacturer warranty

Manufacturer warranty period

3 years on the frame and 1 year on original fitted parts from delivery.

Manufacturer coverage

Manufacturing defects affecting the frame, battery, motor, controller, charger, forks, brakes, display, lights and other original components. Approved cases are generally resolved with replacement parts.

Manufacturer warranties have their own conditions and do not replace or reduce your rights against TrailSurge as the seller. Warranty periods are not added together.

View warranty details Hide warranty details

Manufacturing fault protection

Eligible faults affecting the frame, motor, controller, battery, charger and factory-fitted components, subject to the applicable terms.

After-sales support

12 months of TrailSurge after-sales assistance.Our UK-based team assists EU customers with troubleshooting, warranty enquiries, eligible parts and repairs.

Manufacturer warranty included

KETELES — The manufacturer’s product-specific warranty also applies. See the terms below.

Your EU consumer rights

At least 2 years of legal guarantee from the seller from delivery, with longer protection in some countries. These rights are separate from any manufacturer warranty.

Need warranty help?

Send us your order number, fault details and clear photos or a video.

Cover, claims & exclusions

Commercial warranty terms may exclude normal wear, accidental damage, misuse and unauthorised modifications. These exclusions do not limit your legal rights.

How to request assistance

Contact TrailSurge with your order number, a description of the fault and clear photos or a video. We will assess the issue and explain the available next steps.

KETELES manufacturer warranty

Manufacturer warranty period

3 years on the frame and 1 year on original fitted parts from delivery.

Manufacturer coverage

Manufacturer warranties have their own conditions and do not replace or reduce your rights against TrailSurge as the seller. Warranty periods are not added together.

Description

Quick Summary
The KETELES KF9 is a high-capacity, long-range folding e-bike built for power and endurance. With a massive 35Ah battery and a 1000W motor, it’s made for serious riders who want speed, torque, and freedom to ride farther.

Smooth Power Delivery
Equipped with a powerful 1000W motor and five levels of pedal assist, the KF9 offers smooth acceleration and strong hill-climbing. The throttle lets you ride without pedaling when needed.

Comfort & Control
With front and rear suspension and 4.0” fat tyres, the KF9 absorbs bumps and rough terrain with ease. Hydraulic disc brakes provide excellent stopping power and control in all conditions.

Smart Battery System
The oversized 48V 35Ah battery delivers one of the longest ranges in its class. It’s removable, lockable, and designed for all-day riding with built-in protections for safety and longevity.

Tech You Can Trust
The LCD display shows speed, assist level, battery status, and ride data clearly, even in sunlight. Integrated lights and a durable frame ensure a reliable ride, day or night.

Built for Everyday Use
Folds for easy transport or storage. Comes equipped with front and rear mudguards, rear rack, and integrated lighting—ideal for commuting, touring, or weekend adventure rides.

Specifications

Collection	Electric Bikes
Brand	Keteles
Motor Power	1000W
Battery	48V 35AH
Top Speed	25 MPH
Acceleration Method	Regular Pedalling + Pedal Assist + Throttle Acceleration
Max Range	44-56 MILES
Charging Time	7-8 Hours

Shock Absorbers	Front
Wheel Size	20 x 4.0 Fat Tyre
Brakes	Hydraulic Disc Brakes
Gears	Shimano 7-Speed
Bike Weight	38KG
Max Climb	15 degrees

Size & Rider Fit

Check rider measurements and sizing before you order.

Maximum load 120KG

More measurements & dimensions

Seat height: 99.06 cm
Deck size: Not applicable — bicycle frame
Built dimensions: 180 × 70 × 114 cm (L × W × H)
Box dimensions: 150 × 26 × 80 cm (L × W × H)

KETELES KF9 20 Inch Folding Electric Bike size and dimensions

Fit guidance: Folding 20 in fat-tyre frame with a published saddle height of 99.06 cm. Contact us if you need a fit check.

Sizes are a guide. Rider proportions, footwear and setup can affect fit.

Infographic showing an electric bike’s handlebar with labeled parts, including a smart LCD display, throttle, speed shifter, headlight, phone holder, and switches. Inset highlights display features for speed, battery, and distance.

1000W Rear Hub Drive

A 48V 1000W brushless geared rear hub motor gives the KF9 strong pickup for town riding and heavier loads, with pedal assist or twist throttle control.

Exploded view of a 1000W high-speed brushless motor with text highlighting features: 25-30 MPH max speed, 7-speed gear, 72Nm max torque, and 40° climbing angle.

48V 35AH Long-Range Battery

High-capacity 48V 35AH battery for longer rides, with a quoted 70-90km range depending on terrain, assist level and rider weight. Recharge time is around 7-8 hours with the supplied charger.

Close-up of a bicycles Shimano gear system, showing the rear derailleur, cassette, chain, and gear shifter with numbered dial, all mounted on the bikes black frame.

Foldable Fat-Tyre Comfort

The foldable frame is designed for easier storage and transport, while 20x4.0 fat tyres add stability on rough tarmac and light off-road. Hydraulic disc brakes and Shimano 7-speed gearing round out the ride.

What’s Included in the Box?

1 x KETELES KF9 20 Inch Folding Electric Bike

1 x Front & Rear Fender Set

FREE

1 x Charger

2 x Keys

1 x Tool Kit

1 x User Manual

Assembly Information

Assembly Video

Watch the assembly guide below before first setup.

Download Product Manual

Call TrailSurge

KETELES KF9 20 Inch Folding Electric Bike

TrailSurge Warranty & Support

Manufacturing fault protection

After-sales support

Manufacturer warranty included

Your EU consumer rights

How to request assistance

Manufacturer warranty period

Manufacturer coverage

Manufacturing fault protection

After-sales support

Manufacturer warranty included

Your EU consumer rights

How to request assistance

Manufacturer warranty period

Manufacturer coverage

Description

Specifications

Size & Rider Fit

1000W Rear Hub Drive

48V 35AH Long-Range Battery

Foldable Fat-Tyre Comfort

What’s Included in the Box?

Assembly Information

Assembly Video

Frequently Asked Questions

How portable is the KETELES KF9 20 Inch Folding Electric Bike?

Which rider heights suit the KETELES KF9 20 Inch Folding Electric Bike?

How long does the KETELES KF9 battery take to charge?

Is the KETELES KF9 20 Inch Folding Electric Bike easy to assemble?

Is the KETELES KF9 20 Inch Folding Electric Bike water resistant?

Customer Reviews