The Heybike Mars 3.0 is a do-it-all folding fat-tire e-bike that packs full suspension, a torque-sensor drivetrain, and serious power into a frame you can fold and stow in seconds. A 750W rear hub motor (1400W peak) puts out 95 N·m of torque and pulls from 0–20 mph in about six seconds, while 20" x 4.0" fat tires and a front-and-rear suspension system soak up potholes, gravel, and trail chatter alike. With a 624Wh removable battery good for up to 65 miles, it's equally at home on the daily commute and the weekend backcountry ride.

Because it's tuned with a torque sensor rather than a basic cadence sensor, the Mars 3.0 amplifies your own pedaling for a natural, responsive feel instead of abrupt on/off power. It ships Class 2 (20 mph, throttle included) and unlocks to Class 3 (28+ mph) through the display or Heybike app. A bright TFT color display with NFC tap-to-start, hydraulic disc brakes, integrated lighting with turn signals, and a 440 lb total load capacity round out a genuinely versatile package — folded down, it's just 38 x 20 x 33 inches for easy transport and storage.

Highlights

• Full suspension — hydraulic fork with 65mm travel up front and a Horst-link rear for comfort and control on rough terrain
• Torque-sensor assist — natural, responsive power that matches your pedaling effort
• Folds in ~10 seconds — 6061 aluminum frame with an upgraded folding system for easy storage and transport
• 440 lb max load — upgraded rear rack rated to 100 lbs for cargo, errands, and camping gear
• UL 2849 certified — battery meets UL 2271 standards for safe, reliable charging

Specifications

• Motor: 750W rear hub (1400W peak), 95 N·m torque, torque sensor
• Battery: 624Wh removable lithium-ion
• Range: Up to 65 miles
• Top Speed: 28 mph (ships Class 2 at 20 mph; Class 3 unlock via display/app)
• Charger: 2A, 54.6V output, 100–220V AC input; 5–7 hr full charge
• Frame: 6061 aluminum alloy, folding, with removable battery, rear rack, fenders, and kickstand mount
• Suspension: Front hydraulic fork (65mm travel) + Horst-link rear (full suspension)
• Brakes: Hydraulic disc with 2.0mm thickened rotors
• Tires: 20" x 4.0" puncture-protection fat tires
• Drivetrain: Shimano Altus 8-speed
• Throttle: Half-twist
• Display: TFT color display with NFC tap-to-start
• Lighting: Headlight with horn; taillight with brake & turn signals
• Water Resistance: IP65-rated battery, motor, display & controller (IPX5 bike; light rain safe)
• Weight: 70 lbs (32 kg)
• Max Load: 440 lbs (rear rack rated to 100 lbs)
• Folded Dimensions: 38.2 x 19.7 x 33.1 in
• Unfolded Dimensions: 66.9 x 25.6 x 52.0 in
• Certification: UL 2849 (battery UL 2271)
• Colors: Vivid Orange, Stormy Blue, Nightrider Black

What's in the Box

Mars 3.0 e-bike, charger, key, and user manual. Backed by free shipping, a 14-day trial, and a 2-year warranty.