DYU
DYU A1F Pro 16-Inch Folding Electric Bike – 250W, 36V 7.5Ah
- Free delivery £50+ to England, Scotland & Wales
- Usually dispatched within 1 working day
- 30-day returns
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.
DYU A1F Pro Folding Electric Bike
The DYU A1F Pro is a compact 16-inch folding electric city bike designed for commuting, short urban journeys and easy storage. Its 250W brushless hub motor, 36V 7.5Ah battery, practical rear rack and folding frame make it a versatile everyday option.
Key benefits
- Compact folding frame: stores neatly at home, work or in a vehicle.
- 250W assistance: smooth support up to 25km/h.
- 40–45km pedal-assist range: manufacturer estimate under suitable conditions.
- Front and rear disc brakes: dependable everyday stopping.
- Rear rack and comfort saddle: ready for practical city use.
- Free delivery from £50 to England, Scotland and Wales: for eligible UK addresses once available to order.
Official specifications
| Motor | 36V 250W brushless DC hub motor |
| Battery | 36V 7.5Ah lithium-ion |
| Maximum assisted speed | 25km/h |
| Pedal-assist range | 40–45km |
| Throttle range | 25–30km |
| Wheels | 16 × 1.75 inches |
| Charge time | Approximately 5 hours |
| Weight / maximum load | 21.2kg / 120kg |
| Dimensions | 134.2 × 54.2 × 105cm; folded 76.5 × 40 × 66cm |
Warranty
DYU component warranty applies: frame and front fork up to 24 months; motor, controller and battery 12 months; terms and exclusions apply.
Range varies with rider weight, terrain, weather, tyre pressure and assistance level. Throttle use may be legally restricted in the UK.
Compare DYU A1F Pro before you buy
Compare the DYU A1F Pro with the DYU D3F, C2 and T1 by folded size, weight, wheel size, listed range and current price. Read the best folding electric bikes UK 2026 comparison.
View current e-bike and scooter offers. Eligibility, minimum spend and expiry are shown on the offers page; confirm the final saving at checkout.
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.