Summary
The Mars 3.0 and Ranger 3.0 Pro both have front and rear suspension and a torque sensor, and Heybike lists them at 70 lb and 75 lb. The Ranger S 2.0 is the step-through with front suspension only, and its page gives no weight, folded size or load limit. All three fold, ride on 20 x 4 inch fat tires and use a motor rated at 750W with a 1400W peak.
The three folders side by side
| Model | Suspension | Pedal sensor | Battery | Torque | Weight as listed | Folded size | Max range claim |
|---|---|---|---|---|---|---|---|
| Ranger S 2.0 | Front only | Not stated | 48V 14.4Ah (692Wh) | 80Nm | Not listed | Not listed | 55 miles |
| Mars 3.0 | 65mm coil fork with lockout, Horst link rear | Torque | 624Wh | 95Nm | 32 kg / 70 lb | 38.2 x 19.7 x 33.1 in | 65 miles |
| Ranger 3.0 Pro | 65mm hydraulic fork, adjustable air shock | Torque | 720Wh | 80Nm | 34 kg / 75 lb | 41.7 x 20.5 x 32.7 in | 90 miles |
Heybike does not say whether the Mars 3.0 and Ranger 3.0 Pro weights include the battery. Both list a 440 lb limit for rider and cargo combined and a rear rack rated to 100 lb. The folding collection also carries a fourth model, the Mars 2.5, whose card lists a 1000W peak motor, a 600Wh battery and 45 miles of range.
Range per watt-hour
The range claims do not rise with battery size. Divided out, the Ranger S 2.0 claims about 7.9 miles per 100Wh, the Mars 3.0 about 10.4 and the Ranger 3.0 Pro 12.5. At the Ranger S 2.0's rate, the Ranger 3.0 Pro's 720Wh battery would come to about 57 miles.
Only the Ranger S 2.0 page explains its figure, as "up to 55 miles per charge under optimal conditions," adding that range varies with rider weight, terrain, speed, weather and assist level. The Mars 3.0 and Ranger 3.0 Pro pages give no test conditions.
Class and top speed
The Ranger S 2.0 spec table lists "Class 3" and 28 mph. The Ranger 3.0 Pro ships differently: Heybike says it "is configured as Class 2 by default, with a throttle and a 20 MPH top speed," and that converting it to Class 3 means disabling the throttle and unlocking 28 mph in the display settings or the Heybike app. The Mars 3.0 page states neither a class nor a top speed.
How each page words its certification
Every Heybike page carries a header badge reading "In accordance with UL 2849." Beyond that, the wording differs. The Ranger S 2.0 spec table says "UL 2849 Certified." The Mars 3.0 FAQ says the bike "is UL2849 certified, and their batteries meet UL2271 standards." The Ranger 3.0 Pro FAQ says it "is TÜV certified to UL safety standards, and its battery is UL2849 certified."
The two full-suspension models each list two water-resistance ratings, "IP65" in a feature block and "IPX5" in the FAQ. The Ranger S 2.0 lists IPX4.
Sources
- Heybike: Folding e-bikes collection
- Heybike: Ranger S 2.0
- Heybike: Mars 3.0
- Heybike: Ranger 3.0 Pro
- Heybike: Owner resources and manuals
Data checked, sources, and what we did not test
Data checked: 2026-09-24. Figures and quotations were read on that date from the pages listed under Sources and can change without notice.
Sources: manufacturer, retailer and public-agency pages, listed above. No review sites, forums or retailer ratings were used.
What we did not test: ride quality, brake feel, real-world range, durability and customer service. We have not ridden these bikes and publish no ratings or rankings.