DYU Electric Bike for Adults Teens
- Electric Bicycle
- 14 inches
- 165 pounds
- 360 Wh
- More reviewed than 91%
A capable, easy to fold commuter e-bike for city riders who do not need long range or steep hill climbing, with the tradeoff of a front end that can lift when pedaling hard uphill.
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How it ranks among the 478 electric bicycles we track
4.1★ across 161 Amazon ratings, Bayesian-smoothed toward the category average.
161 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 478 electric bicycles we track - how the scorecard works · full electric bicycles data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 21, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 14 inch folding electric bike with a 250W motor and 36V 10Ah lithium battery, offering pure electric, pedal-assist, and manual pedaling modes, aimed at commuters who want something small enough to fold into a trunk or carry onto transit.
Listed range is 40-45 miles though the spec details also cite 37-40 miles under electric-only, flat-road, full-power conditions with a rider under 165 lb, so real-world range will vary with rider weight and terrain. Reviewers who bought it as an entry-level commuter bike, rather than expecting road-bike performance, were generally satisfied with the build quality for the price.
- 250W motor, 36V 10Ah lithium battery
- 14 inch folding aluminum alloy frame
- Front and rear disc brakes
- 8-second hold-to-cruise speed lock
Who it's for
Suits commuters and casual riders, including older adults, who want a lightweight, foldable bike for flat city riding rather than serious distance or hill climbing. One reviewer over 60 found it an easier alternative to a standard bike.
What buyers say
From Amazon customer reviews.
Riders, including at least one in their 60s replacing a standard bike, called it easy to assemble and well suited to flat city commuting, with enough power to carry riders up to around 265 lb. The complaints centered on hills, where the front wheel can lift under hard pedaling, an E3 error code on at least one unit out of the box, and slow replies when contacting the company with questions.
Strengths and trade-offs
Drawn from this product's published specifications.
- Folds small enough for a car trunk or transit
- Rated to carry riders up to about 265 lb
- Three modes cover manual to full electric
- Easy assembly reported by most buyers
- Front wheel can lift when pedaling hard uphill
- At least one unit arrived with an E3 error
- Customer service slow to respond to questions
Specifications
| Brand | DYU |
|---|---|
| Model | D3F |
| Dimensions & fit | |
| Wheel Size | 14 inches |
| Maximum Weight Recommendation | 165 pounds |
| Item Weight | 37.4 pounds |
| Capacity & performance | |
| Bicycle Gear Shifter Type | Twist Grip |
| Bicycle Drivetrain Type | Electric |
| Number Of Speeds | 1 |
| Age Range Description | Adult; Teen |
| Power & efficiency | |
| Lithium Battery Energy Content | 360 Wh |
| Wattage | 250 watts |
| Power Source | Electric motor |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Wheel Material | Aluminum |
| Color | Black |
| Included components | |
| Included Components | Charger, Electric Bike |
| Warranty & support | |
| Warranty Type | Limited |
| Warranty Description | 2 years |
| Other details | |
| Bike Type | Electric Bike |
| Suspension Type | Rear |
| Electric Assist Type | Electric Assist |
| Is Assembly Required | No |
| Model Year | 2021 |
| Additional Features | Foldable, Lightweight, Portable |
| Brake Style | Disc |
| Specific Uses For Product | City Commuting, Suburban Cycling, Adapting to Complex Topography |
| Style Name | D3f-black |
Other DYU electric bicycles
How it compares
This product against the closest alternatives we track in electric bicycles.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| DYU Electric Bike for Adults TeensThis product | 4.1 / 5 | 161 | 3.8 / 5 |
| Wooken Electric Bike for Adults with 500W MotorWooken | 4.4 / 5 | 312 | 4.1 / 5 |
| TotGuard Electric BikeTotGuard | 4.4 / 5 | 286 | 4.1 / 5 |
| ANCHEER 14" Folding Electric Bike for TeensAncheer | 4.2 / 5 | 329 | 4.0 / 5 |
| Gotrax 16" Folding Electric BikeBrand | 4.4 / 5 | 555 | 4.0 / 5 |
Similar electric bicycles from other brands
Questions about the DYU D3F
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How far can the DYU D3F travel on a charge?
The listing states 40-45 miles, while the spec details cite 37-40 miles under electric-only, flat-road conditions for riders under 165 lb.
What is the DYU D3F's weight capacity?
Reviewers reported it rated for riders up to roughly 264-265 lb.
Does the D3F fold for storage or transit?
Yes, it is built as a compact folding frame meant to fit in a car trunk or be carried onto a train or bus.