DYU D3F 14 Inch Folding Electric Bike
- 250 watt motor, 36V 10AH battery
- 360 watt hours battery energy
- 40 to 45 miles claimed range, item type says 37 to 40
- 14 inch wheels, folding frame
- 37.4 pounds
- 165 pounds maximum rider weight
- Disc brakes, rear suspension
- 2 year manufacturer warranty
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A small-wheel folding e-bike with motor assist and disc brakes for city commuting, delivered assembled. The range claim differs between fields, and the weight limit is modest.
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ASIN: B09D7L9L5KModel: D3FCategory: Electric Bicycles
Overview
Folding down for a train, an elevator or a car trunk, the D3F pairs an aluminum frame with a rear suspension and a lithium-ion battery. A twist grip controls the electric assist, and a charger is included.
Folding convenience with motor assist and disc brakes is the reason to consider it for short city trips. Gaps include the two range claims, the single speed, small wheels and a rider weight limit that excludes many adults.
Who it's for
Beginner adults and teens commuting in a city or suburb, who want to fold the bike and ride with a motor, are the target. Heavier riders, or those who want a bike for steep terrain or long distances, should look at a larger e-bike.
Pros and cons
- Folding frame with motor assist
- No assembly required
- Range claim differs between fields
- Low maximum rider weight
- Single speed only
Performance notes
The motor adds assistance, with real range depending on rider weight, terrain, assist level and battery condition. Small wheels turn quickly and fold compactly but feel bumpier over rough pavement, which the rear suspension partly offsets. Disc brakes stop consistently, including in the wet.
Specifications
| Brand | DYU |
|---|---|
| Model | D3F |
| Dimensions & fit | |
| Maximum Weight Recommendation | 165 Poundslower than 100% of 250 electric bicycles |
| Wheel Size | 14 Incheslower than 93% of 367 electric bicycles |
| Item weight | 37.4 Pounds |
| Capacity & performance | |
| Wattage | 250 watts |
| Number Of Speeds | 1 |
| Power & efficiency | |
| Lithium Battery Energy Content | 360 Watt Hours |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Included components | |
| Included Components | Charger, Electric Bike |
| Other details | |
| Electric Assist Type | Electric Assist |
| Brake Style | Disc |
| Suspension Type | Rear |
| Is Assembly Required | No |
Closest rivals on specs
Gotrax Nano Folding Electric Bike 14 Inch- Maximum Weight Recommendation 165 vs 220 pounds (-25%)
Tomofree T0 Folding Electric Bike 48V 20Ah- Maximum Weight Recommendation 165 vs 220 pounds (-25%)
INSDRGN A14 14 Inch Folding Electric Bike- Maximum Weight Recommendation 165 vs 220 pounds (-25%)
Frequently asked questions
Does the DYU D3F work on steep hills?
The specific uses mention adapting to complex topography, but the listing gives no gradient rating.
Is the DYU D3F ready to ride?
Yes. The listing says assembly is not required, and the charger is included.
How far does the DYU D3F go on a charge?
The title claims 40 to 45 miles while the item type name says 37 to 40 miles, so treat the range as an estimate.