DYU
DYU D3F 14-Inch Folding Electric Bike – 250W, 36V 10Ah
- Free delivery £50+ to England, Scotland & Wales
- Usually dispatched within 1 working day
- 30-day returns
£395.00
£469.00
In stock
Throttle and public-road use in Great Britain A 250W label or 25km/h setting alone does not establish EAPC compliance. The complete cycle must have usable pedals, no more than 250W maximum continuous rated motor power, an assistance cut-off at 15.5mph,...
Free delivery from £50England, Scotland & Wales · usually 2–3 working days after dispatch
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Throttle and public-road use in Great Britain
A 250W label or 25km/h setting alone does not establish EAPC compliance. The complete cycle must have usable pedals, no more than 250W maximum continuous rated motor power, an assistance cut-off at 15.5mph, and the required markings and safety equipment. Walk assist limited to 3.7mph (about 6km/h) is outside the throttle type-approval requirement. A twist-and-go cycle introduced after 1 January 2016 that can propel itself without pedalling beyond walk-assist speed requires type approval or individual approval, even if it meets the EAPC power and speed limits. An approved twist-and-go EAPC can still be treated as a pedal cycle; a throttle does not automatically make every bike unlawful.
Using pedal assist, avoiding the throttle or choosing a lower display setting does not establish compliance. Department for Transport guidance also treats cycles with a selectable mode capable of motor propulsion above 15.5mph as motor vehicles. Where the supplied configuration or required approval has not been verified, do not use the bike on public roads or cycle paths as an ordinary EAPC. Use only on suitable private land with permission unless the applicable road-use requirements are met. Read the official EAPC and throttle guidance.
Currently out of stock. This page remains available so customers can review the specification and compare alternatives. Browse electric bikes under £500 currently listed.
DYU D3F Folding Electric Bike
Compact enough for city storage and capable enough for everyday journeys, the DYU D3F combines a listed 250W brushless motor, a 36V 10Ah battery and a quick-folding 14-inch frame. It is a practical choice for commuters, students, caravans and anyone short on storage space.
Why riders choose the D3F
- Compact folding design: folds to approximately 115 × 29 × 70cm.
- Useful everyday range: manufacturer-rated 40–50km in pedal-assist mode.
- Light and manageable: approximately 17kg net weight.
- Confident stopping: front and rear disc brakes.
- Fast recharge: approximately 4–6 hours.
- Free delivery from £50 to England, Scotland and Wales: no delivery charge at checkout for eligible UK addresses.
Official specifications
| Motor | 36V 250W brushless DC hub motor |
| Battery | 36V 10Ah lithium-ion |
| Maximum assisted speed | 25km/h (15.5mph) |
| Pedal-assist range | 40–50km |
| Throttle range | 35–45km |
| Wheels | 14 × 2.125 inches |
| Frame | Steel |
| Brakes | Front and rear disc brakes |
| Bike weight / load | 17kg / up to 120kg |
| Dimensions | 115 × 48.7 × 102.3cm; folded 115 × 29 × 70cm |
Warranty
Covered by DYU’s component warranty: frame and front fork up to 24 months; motor, controller and battery 12 months; other components vary. Terms and exclusions apply.
Important UK road-use information
The D3F’s 250W pedal-assist specification is designed around the UK EAPC power limit. Throttle operation can be subject to separate legal restrictions; customers are responsible for lawful use. Range varies with rider weight, terrain, temperature, tyre pressure and assistance level.
Compare DYU D3F before you buy
Compare the lightweight DYU D3F with the DYU C2, A1F Pro and T1 by folded size, weight, wheel size, listed range and current price. Read the best folding electric bikes UK 2026 comparison.
This model is currently out of stock. Compare the available folding electric bikes in the guide above before ordering.
BrandDYU
Product typeElectric Bike
SKU6
AvailabilityIn stock in our UK warehouse
Full specificationMotor, battery, range and weight are listed in the Description tab.
Delivery
Free delivery on orders of £50 or more to England, Scotland and Wales. Standard delivery below £50 costs £6.99. Northern Ireland is not covered by standard checkout; contact us before ordering. Orders are usually processed within one working day and delivered 2–3 working days after dispatch. Weekend and bank holiday orders are processed the next working day. Delivery policy
Returns
30-day returns. Your statutory rights are not affected. Returns policy
Assembly and help
Bikes may need final assembly and safety checks before riding. Questions before or after you buy? Contact our Cardiff team.
