An Adventure Folder
Most folding e-bikes are built for pavement. The Heybike Mars 3.0 is built for everything else too. Full front and rear suspension, 20x4" fat tires, and a 1400W peak hub motor in a package that folds for storage. At $1,299, it's the most affordable full-suspension folding e-bike we've tested.
Suspension That Actually Works
The front fork has 65mm of travel and the rear shock provides 30mm of stroke. That's modest by mountain bike standards, but for a folding e-bike it's transformative. Potholes, gravel paths, broken sidewalks, and light trails all become dramatically more comfortable. The fat tires add another layer of cushioning.
We took the Mars 3.0 on packed dirt trails, gravel roads, and rough urban streets. It handled all of it without complaint. This is not a mountain bike and it won't handle technical single track, but for mixed-surface commuting and light off-road use, the suspension earns its keep.
Torque Sensor at This Price
Heybike made a smart call putting a torque sensor in the Mars 3.0. At this price point, most competitors still use cadence sensors. The torque sensor makes the pedal assist feel natural and responsive, particularly at low speeds where cadence sensors tend to feel jerky.
The 1400W peak motor (750W sustained) has plenty of power. Hill climbing is strong, acceleration is quick, and the bike maintains speed well on varied terrain.
Range and Real-World Performance
In eco mode with light pedaling on mostly flat ground, we got just over 60 miles before assist cut out. That lines up with Heybike's 65-mile claim under ideal conditions. In higher assist levels on hilly terrain, expect 30-40 miles. The battery charges in about 6 hours.
Notable Details
Front and rear turn signals come standard -- a safety feature that most e-bikes in this price range skip. Bluetooth connectivity with the Heybike app adds ride tracking and settings customization. The color display is clear and easy to read.
At 75 pounds, this is one of the heavier folding e-bikes. The suspension and fat tires add weight. It folds compactly enough for a car trunk, but don't plan on carrying it up stairs regularly.
Bottom Line
If your riding involves anything beyond smooth pavement -- gravel paths, potholed streets, beach boardwalks, or light trails -- the Mars 3.0's full suspension makes it the best choice under $1,500. For pavement-only riding, the Lectric XP 4.0 at $999 is a better value. See all our picks in the best folding e-bikes of 2026 guide.