What is the difference between the KETELES KF9 1000W and 2000W options?

The 1000W option uses one rear motor with a 48V 35Ah battery, while the 2000W option is listed as a dual-motor version with a 48V 26Ah battery. More motor power therefore does not mean more battery capacity. Choose the 35Ah version for energy reserve or the dual-motor version when additional traction and climbing support matter more.

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

Brand:

KETELES KF9 20 Inch Folding Electric Bike

Motor

1000W

Battery

48V 35AH

Speed

25 MPH

Range

44-56 MILES

£1,899.00 £1,199.00

In stock 18 sold this week

Klarna £399.67 ×3

Clearpay £299.75 ×4

PayPal £399.67 ×3

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Click & Collect Collection from our Nuneaton workshop

Collect from our Nuneaton workshop

Collection is available by appointment from our Nuneaton workshop. The preparation time depends on where the product is currently stored. Contact us before ordering for the latest availability, or place your order and we will confirm when it is ready to collect.

Transfer required to Nuneaton Usually 5–7 working days

Products stored at another warehouse normally require 5–7 working days to reach our workshop. We will confirm as soon as the item is ready and arrange your collection appointment.

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Why Buy From TrailSurge? UK showroom, product support & aftercare

Buy your KETELES KF9 20 Inch Folding Electric Bike with UK-based support

TrailSurge is a UK retailer with a showroom and workshop in Nuneaton. Our team can help before you order and continue supporting you after your KETELES KF9 20 Inch Folding Electric Bike arrives.

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Why buy through TrailSurge? For the best UK-based support and aftercare, we recommend buying through TrailSurge rather than ordering directly from overseas manufacturers or China-based sellers, where returns, warranty support and parts handling can be more difficult.

Need help with the KETELES KF9 20 Inch Folding Electric Bike? Ask our team a question before ordering.

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For the first 12 months, TrailSurge Warranty+ gives you direct UK support on eligible faults affecting the main factory-fitted components — with practical help to get you back up and running.

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Major factory-fitted components covered
Repair, parts or another suitable solution where eligible

Typical component cover: Eligible faults affecting major factory-fitted components, including the frame and forks, motor and drive system, controller, battery and BMS, charger, wiring, display, gears, brakes, and factory-fitted sensors or controls.

KETELES manufacturer warranty

Warranty period: 3 years on the frame and 1 year on original fitted parts from delivery.
What’s covered: 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.

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 .

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
Bike Type	Fat Tyre
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
Max Rider Weight	120KG
Dimensions
Built Dimensions	180 × 70 × 114 cm (L × W × H)
Box Dimensions	150 × 26 × 80 cm (L × W × H)

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.