HEADEER BK20 vs VIVI FM20UL
Side-by-side eBike comparison · Specs, scores & verdict
🏆 VIVI FM20UL wins overall — 45.2 vs 37.8 points
Full Specs Comparison
⚡ Motor & Power
Hub-drive-rear
Motor Type
Hub-drive-rear
750 W✓
Nominal Power
—
—
Peak Power
✓1000 W
—
Torque
✓65 Nm
—
Sensor Type
Cadence
—
PAS Levels
✓5
—
Throttle
✓✓ Yes
—
Max Assist Speed
✓25.0 km/h
🔋 Battery & Range
960 Wh✓
Battery Capacity
374 Wh
80 km
Claimed Range
80 km
✓ Yes
Removable Battery
✓ Yes
—
Battery Position
Integrated
🚲 Frame & Fit
—
Frame Style
Step-over
Steel
Frame Material
Aluminum
39.2 kg
Weight
✓25 kg
150 kg
Max Payload
150 kg
🔧 Suspension
—
Front Suspension
Coil
—
Front Travel
✓60 mm
—
Rear Suspension
None
⚙️ Drivetrain & Brakes
5-speed
Gears
✓7-speed
—
Drive System
Chain
—
Brake Type
Mechanical-disc
—
Rotor Size (F)
✓160 mm
—
Rotor Size (R)
✓160 mm
🛞 Wheels & Tires
20.0"
Wheel Size
20.0"
4.00"
Tire Width
2.40"
Fat
Tire Type
Fat
—
Puncture Protection
✓✓ Yes
📱 Tech & Features
Lcd
Display
Lcd
None
Connectivity
None
✓ Yes
Lights
✓ Yes
✓ Yes
Rear Rack
✓ Yes
✓ Yes
Fenders
✓ Yes
—
Walk Assist
✓✓ Yes
—
USB Charging
✗ No
📝 Our Verdict
The biggest measurable difference: build — the VIVI FM20UL leads by 32 points. The VIVI FM20UL edges out the HEADEER BK20 on our overall score, though both are competitive eBikes. For hill climbing and loaded riding, the VIVI FM20UL's superior torque gives it the edge.
HEADEER BK20 vs VIVI FM20UL — HEADEER BK20
The VIVI FM20UL scores higher overall (45 vs 38/100). The VIVI FM20UL is $257 cheaper.
