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.

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

Keteles Kf9 Bicicleta Eléctrica Plegable De 20 Pulgadas

Motor

1000W

Battery

35AH

Speed

24 KM/H

Range

0 KM

€2.307,95 €1.456,95

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Our team can help with product questions, troubleshooting and eligible warranty or fault claims.

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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+

12 monthsof cover

UK-based warranty and after-sales support

What’s covered

Frame & forks · Motor & controller · Battery & charger · Factory-fitted electrics & mechanical parts

Here when you need us

Fault assessment, warranty guidance and help arranging eligible repairs or replacement parts.

Need to make a claim?

Contact our UK team with your order number and a few photos.

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Cover & exclusions

Normal wear, accidental damage, misuse and unauthorised modifications are excluded. Eligibility and remedies are subject to the full warranty terms.

Need to make a claim?

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

KETELES manufacturer warranty

Manufacturer warranty period

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

Manufacturer cover

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.

Separate manufacturer terms apply. Warranty periods are not added together.

View warranty details Hide warranty details

What’s covered

Frame & forks · Motor & controller · Battery & charger · Factory-fitted electrics & mechanical parts

Here when you need us

Fault assessment, warranty guidance and help arranging eligible repairs or replacement parts.

Need to make a claim?

Contact our UK team with your order number and a few photos.

Cover & exclusions

Normal wear, accidental damage, misuse and unauthorised modifications are excluded. Eligibility and remedies are subject to the full warranty terms.

Need to make a claim?

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

KETELES manufacturer warranty

Manufacturer warranty period

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

Manufacturer cover

Separate manufacturer terms apply. Warranty periods are not added together.

Description

Resumen rápido
La KELELES KF9 es una bicicleta eléctrica plegable de alta capacidad y largo alcance diseñada para ofrecer potencia y resistencia. Con una enorme batería de 35 Ah y un motor de 1000 W, está hecha para ciclistas serios que buscan velocidad, torque y libertad para viajar más lejos.

Entrega de energía suave
Equipado con un potente motor de 1000 W y cinco niveles de asistencia al pedaleo, el KF9 ofrece una aceleración suave y una fuerte subida de pendientes. El acelerador te permite conducir sin pedalear cuando sea necesario.

Comodidad y control
Con suspensión delantera y trasera y neumáticos gruesos de 4,0", el KF9 absorbe baches y terrenos accidentados con facilidad. Los frenos de disco hidráulicos proporcionan una excelente potencia de frenado y control en todas las condiciones.

Sistema de batería inteligente
La batería de gran tamaño de 48 V y 35 Ah ofrece una de las autonomías más largas de su clase. Es extraíble, bloqueable y está diseñado para montar durante todo el día con protecciones integradas para mayor seguridad y longevidad.

Tecnología en la que puedes confiar
La pantalla LCD muestra claramente la velocidad, el nivel de asistencia, el estado de la batería y los datos de conducción, incluso a la luz del sol. Las luces integradas y un marco duradero garantizan un viaje confiable, de día o de noche.

Construido para uso diario
Se pliega para facilitar su transporte o almacenamiento. Viene equipado con guardabarros delantero y trasero, portaequipajes trasero e iluminación integrada, ideal para viajes diarios, de turismo o de aventuras de fin de semana.

Specifications

Collection	Bicicletas eléctricas
Brand	Keteles
Motor Power	1000W
Battery	35AH
Top Speed	15,5 mph
Acceleration Method	Regular Pedalling + Pedal Assist + Throttle Acceleration
Max Range	Más de 30 millas
Charging Time	Más de 7 horas

Shock Absorbers	Frente
Wheel Size	Neumático ancho de 20 pulgadas x 4.0
Brakes	Frenos de disco delanteros y traseros
Gears	Shimano 7-Speed
Bike Weight	28KG
Max Climb	15 grados

Size & Rider Fit

Check rider measurements and sizing before you order.

Maximum load 120 kg

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 Bicicleta Eléctrica Plegable De 20 Pulgadas 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.