DYU D3F Folding City Electric Bike

Shop the DYU D3F folding city electric bike for urban commuting, errands and everyday rides, with compact storage and practical city-ready performance.

£379.00

£549.00Save £170.00

3 payments of £126.33 at 0% interest with klarna

Delivered by Thursday if you order within 1 hrs 45 min

SPEED15.5 Mph
RANGE31 Miles
MOTOR250 W
BATTERY10 Ah

Road Legal

See full UK Road Legal.

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UK Stock - Fast and free delivery across the UK from Birmingham.

Road Legal - Shop with confidence using clear guidance on road-legal UK e-bikes.

Warranty - Includes a 12-month manufacturer warranty for extra peace of mind.

UK Support - Helpful UK support before purchase and after your bike arrives.

Need help? Chat with us for quick clarifications

Description

Product Overview

The DYU D3F Folding City Electric Bike is a compact 14-inch city e-bike built for urban commuting, errands and everyday riding. Its folding design makes it a practical choice for riders who want easy storage and portability without giving up electric assistance.

Powered by a 250 W motor and a 36 V 10 Ah lithium-ion battery, the DYU D3F delivers smooth support for short to mid-distance city journeys. With front and rear disc brakes, spring shock and integrated lights, it is designed for practical daily use.

Key Features

Here are some of the standout features of the DYU D3F Folding City Electric Bike:

14-inch folding city e-bike design for compact storage and transport
250 W motor with a top speed of 15.5 mph (25 km/h)
36 V 10 Ah lithium-ion battery for everyday riding
Up to 31 miles pedal assist range and 25 miles throttle range
Front and rear disc brakes for controlled stopping
Spring shock for added comfort on urban rides
Headlight and rear fog light for visibility
Cruise function for more relaxed riding

What to Expect

The DYU D3F is suited to daily city travel, offering practical range, manageable weight and a compact folded size. Charging takes 5–6 hours, making it easy to prepare for regular commuting and local trips.

What’s Included

Electric bike
Battery
Charger
User manual

Assembly & Setup

Setup is straightforward, and the folding frame helps make handling and storage more convenient. Once charged, the bike is ready for everyday urban riding.

Support After Purchase

After your purchase, you can expect ongoing support for getting started with your DYU D3F and understanding its main functions and setup.

Technical Specifications

Frame Material	Metal
Full Size	1170 × 500 × 990 mm
Folded Size	1170 × 200 × 720 mm
Package Size	1195 × 230 × 610 mm
Weight	19 kg
Load Capacity	120 kg
Max Speed	15.5 mph (25 km/h)
Operating Temperature	-10 to 45 °C
Waterproof Level	IP54
Lights	Headlight & rear fog light
Cruise	Yes
Brake Mode	Front & rear disc brakes
Battery Type	Lithium-ion
Battery Capacity	10 Ah
Motor Rated Power	250 W
Motor Rated Voltage	36 V
Charging Voltage	DC 42 V
Input Voltage	AC 100–220 V
Charging Time	5–6 h
Range (Pedal Assist)	31 miles
Range (Throttle)	25 miles

UK Road Use & Legal Information

Road Legal (EAPC)

These bikes are built to comply with UK Electrically Assisted Pedal Cycle (EAPC) regulations, meaning they can be used on public roads and cycle paths without registration, tax, or a licence. Motor assistance is limited to 250W and cuts off at 15.5 mph (25 km/h). You can read the official requirements on the UK government website.

Configurable Models

Some bikes are supplied in a restricted, road-legal setup but are capable of higher performance. If modified or used beyond EAPC limits, they may no longer qualify as road legal and could be classified as motor vehicles under UK law. This may require registration, insurance, and a driving licence. For full guidance, please refer to the official UK e-bike rules.

Private Use Only

Certain high-performance models are intended strictly for private land use with the landowner’s permission. These bikes do not meet EAPC standards and cannot be used on public roads, cycle paths, or pavements unless fully registered and insured in accordance with UK law.

If you're unsure which option is right for you, our team is here to help. Feel free to contact us before purchasing for clear guidance and peace of mind.

Returns & Delivery

Fast UK Delivery

We offer fast and reliable delivery across the UK, with most bikes dispatched within 24–72 hours and usually arriving in 3–7 working days. Every order is shipped with trusted couriers and includes tracking, as explained in our payment and shipping page, so you can follow your delivery from dispatch to arrival.

Shipping Information

Standard UK shipping is free on most bikes. Orders placed after 12 PM may ship the next working day, and some remote areas may have extra delivery charges. If a delivery is missed or returned after failed attempts, additional shipping fees may apply, as detailed in our shipping policy.

14-Day Returns

You can return your bike within 14 days of delivery as long as it is unused, in its original condition, and includes all accessories, manuals, and packaging. Please contact us first before sending anything back, following the steps outlined in our returns and refunds policy.

Refund Policy

Once your returned bike is received and inspected, approved refunds are issued to your original payment method within 2–5 business days. If the item arrives faulty, damaged, or incorrect, we cover return shipping and provide a full refund, as explained in our refund guidelines.

Customer Reviews

See why riders choose BikTron for value, delivery speed, and after-sales support.

Jakob Russ (London)

"Great experience with Biktron.uk. Fast delivery, excellent customer service, and the bike quality is outstanding for the price. Everything was smooth from order to delivery. Highly recommend!"

Amelia R. (Manchester)

"Customer support was fantastic and helped me pick the right frame size within an hour. Klarna instalments made the purchase stress-free, and the bike’s motor is quiet yet powerful. I’ve already done several long rides and the range is better than expected."

Jacob S. (Bristol)

"My courier was delayed by a day, but BikTron kept me fully informed and even followed up to check delivery. The bike handles hills far better than I imagined and feels solid on longer rides. Overall, very happy with the purchase and the service."

Sophie M. (Leeds)

"Ordering was simple and I loved the clear specs and photos online. The bike arrived well protected, and setup took less than 20 minutes. It rides beautifully — smooth, fast, and stable — and I’m already recommending BikTron to friends who want great value."

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