How small does the D3F actually get when it is folded?

The D3F is better described as compact or semi-folding than suitcase-small. DYU lists a folded size of about 117 × 20 × 72cm, so the bike becomes much narrower but keeps most of its original length.That works well for a car boot, hallway, office or camper, but it is not a tiny package you would want to carry around a station for long periods.

Does the D3F have app control, or is it a simple stand-alone bike?

DYU's current comparison information lists no phone app for the D3F. It is intentionally simple, although the current UK model does include a cruise function for steady-speed riding.

What range should I realistically plan around on the D3F?

DYU's current UK specification lists up to around 50km in pedal-assist use and around 40km using throttle mode. Those are maximum test figures, not a guaranteed everyday distance.Rider weight, cold weather, hills, stop-start riding and higher assistance all reduce range, so leave a useful reserve rather than planning a journey around the final kilometre of the claim.

Is the DYU D3F 250W 14” Opvouwbare Elektrische Fiets easy to assemble?

The DYU D3F 250W 14” Opvouwbare Elektrische Fiets 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 DYU D3F 250W 14” Opvouwbare Elektrische Fiets water resistant?

The DYU D3F 250W 14” Opvouwbare Elektrische Fiets 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.

DYU D3F 250W 14” Folding Electric Bike 250W 36V 10Ah

DYU D3F 250W 14” Opvouwbare Elektrische Fiets

Motor

250W

Battery

36V 7,5AH

Speed

24 KM/H

Range

60 KM

€710,95 €425,95

Sold out

Klarna €141,98 ×3

Clearpay €106,49 ×4

PayPal €141,98 ×3

Finance

From —/mo 24, 36 or 48 months at 15.9% APR 6 or 12 months at 0% interest

Shop Pay

From €35,50/mo 12 months at 0% interest Up to 24 months available

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Out of stock

This item is currently unavailable
Contact us for the latest restock estimate
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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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Best Price Guaranteed

Seen the exact same product advertised for less? Send us the live offer before you order and we’ll check whether we can match it.

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The model, specification, colour, condition and delivery terms must be like-for-like
Marketplace or private sellers, used or clearance items, private codes, finance-only offers, bundle deals and obvious errors are excluded

Usually answered within 24 hours. Need a quicker answer? WhatsApp us or call 0800 099 6187.

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

Buy your DYU D3F 250W 14” Opvouwbare Elektrische Fiets 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 DYU D3F 250W 14” Opvouwbare Elektrische Fiets arrives.

UK-based customer support before and after your purchase
Showroom and workshop in Nuneaton
Help with product questions, setup, parts and aftercare
Tracked UK delivery with support if you need help with your order
Speak to a real member of our team before placing your order

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 DYU D3F 250W 14” Opvouwbare Elektrische Fiets? Ask our team a question before ordering.

WhatsApp Us Call Us 0800 099 6187

Check your fit

Size & Rider Fit

Seat Height: Minimum 26.9 in (68 cm)
Maximum Rider Weight: 120 kg
Handlebar height: 38.5 in (98 cm)

Good to know Compact 14 in mini e-bike frame. Contact us with your height and inside leg for a fit check.

Trail Surge Warranty Plus FULL OFFICIAL WARRANTY INCLUDED UK-based support alongside the manufacturer warranty TRAILSURGE COVER 12 months

TWO LAYERS OF PROTECTION

More confidence after you buy

TrailSurge Warranty+ gives you a direct UK warranty alongside the product’s manufacturer warranty.

01 TRAILSURGE WARRANTY +

12 months of TrailSurge support

UK-based fault support
Battery, motor and frame fully covered.
Repair, parts or another suitable solution where eligible

02 DYU WARRANTY

Manufacturer warranty period 12 months for the original owner on the frame, battery and factory-fitted components.

Manufacturer cover

Manufacturing defects and confirmed transit damage. Eligible frame faults may qualify for a replacement frame, while batteries may be repaired or replaced following assessment.

Typical component protection Eligible faults affecting the frame and forks, motor and drive system, controller, battery and BMS, charger, wiring, display, gears, brakes and factory-fitted controls.

Description

Snel door de stad

De stille 250W-motor van de D3F zorgt voor een soepele acceleratie zodra je het gaspedaal intrapt of een van de drie trapondersteuningsniveaus inschakelt. Perfect voor snelle boodschappen of om door het verkeer te slingeren, het voelt bijna alsof je op lucht rijdt.

Kracht in zakformaat

Ondanks zijn kleine 14 inch wielen en minimalistische frame, verbergt de D3F een 36V 7,8 Ah accu die in minder dan 4 uur uitschuift om op te laden. Met een volle accu kun je tot 40 km puur elektrisch rijden – of verleng dat tot 60 km met een beetje trapkracht.

Comfort in een klein pakket

Robuuste lekbestendige banden en een geveerd zadel absorberen hobbels die je nooit zou verwachten op zo'n kleine fiets. Je gewrichten – en je ochtendkoffie – zijn je dankbaar wanneer je zonder schokken over scheuren, kasseien of verkeersdrempels raast.

Vouwt in een flits

Met één snelle ontgrendeling van de steel en het framescharnier vouwt u de D3F in tot een formaat dat klein genoeg is voor busrekken, treinvloeren en kantoorhoeken. Met slechts 18 kg is hij licht genoeg om mee naar boven te nemen of onder uw bureau te verbergen.

Veiligheid waarop u kunt rekenen

LED's aan de voor- en achterkant zorgen ervoor dat je zichtbaar bent in de schemering, terwijl mechanische schijfremmen zorgen voor betrouwbare remkracht in regen en zonneschijn. Reflecterende accenten rond het frame geven je net dat beetje extra bij weinig licht.

Specifications

Collection	DYU elektrische fietsen
Brand	DYU
Bike Type	Stad & Forens, Vouwen
Motor Power	250W
Battery	36V 7,5Ah
Top Speed	15,5 MPH
Acceleration Method	Normaal trappen + trapondersteuning + gashendel
Max Range	37 mijl
Charging Time	5+ uur

Wheel Size	14 inch
Brakes	Dubbele mechanische schijfremmen
Gears	Geen versnellingen
Bike Weight	20 kg
Max Climb	15 graden
Max Rider Weight	120 kg
Dimensions
Built Dimensions	117 × 50 × 99 cm (L × W × H)
Box Dimensions	119.5 × 23 × 61 cm (L × W × H)

A close-up view of a bike wheel with a 250W powerful brushless motor, showing an exploded diagram of the motor components in front of the wheel. Text reads: “250W Powerful Brushless Motor.”.

Fluisterstille krachtexplosie van een borstelloze motor van 250 W

Ervaar de soepele, efficiënte acceleratie dankzij de geavanceerde 250 W naafmotor van de DYU D3f die direct koppel levert en een gereguleerde topsnelheid van 25 km/u bereikt zonder dat je fiets rammelt. Afgedicht voor duurzaamheid en afgestemd op maximale actieradius, brengt hij je moeiteloos en vol vertrouwen de heuvels op en door het verkeer.

Close-up images of the front and rear wheels of a bicycle, highlighting the dual disc brake system. Text reads: Front & Rear Dual Disc Brakes. Efficient Braking, Safe Riding.

Bliksemsnel stoppen met dubbele schijfremmen voor en achter

Rijd met volledige gemoedsrust dankzij de nauwkeurig ontworpen remschijven op beide wielen. Zeer gevoelige remklauwen grijpen direct aan in alle weersomstandigheden, voor een messcherpe modulatie en de kortste remafstanden – perfect voor woon-werkverkeer in de stad en drukke straten.

A collage showcases close-up shots of a black DYU electric bicycle, highlighting the headlight, seat, handlebar, front wheel with disc brake, frame with branding, and the rear wheel motor.

Alles wat u nodig hebt: geïntegreerde slimme componenten voor ultiem gemak

Van de heldere led-koplamp en het veerbelaste comfortzadel tot de voelbare bel en de gemakkelijk bereikbare gashendel: de D3f combineert essentiële functies naadloos met een compact chassis. Een ingebouwd achterspatbord houdt je droog, terwijl de discrete draaggreep ook dienstdoet als batterijklepje om hem snel en gemakkelijk op te laden.