VTUVIA
SX20
Model year 2025
$1,5997.6
Price and specs last reviewed Jul 17, 2026
The VTUVIA SX20 is a folding step-through fat tire e-bike built around a 750W rear-hub motor with 85 Nm of torque and a torque sensor for natural pedal feel. A 48V 14Ah battery delivers up to 70 miles of manufacturer-rated range (about 45 miles in real-world mixed riding), and the 330 lb payload capacity handles most riders comfortably. At 70 lbs it folds down in about 30 seconds for car trunk storage or apartment living, and 20x4.0 fat tires with front suspension smooth out the ride despite the compact frame.
- ✓ 750W motor with 85 Nm torque, torque sensor
- ✓ 48V 14Ah battery, up to 70 mi manufacturer range
- ✓ 30-second fold, 20x4.0 fat tires
- ✓ 330 lb payload capacity
- ✓ Front suspension, step-through folding frame
CommutingRecreation
Scores
How we score →Overall score
7.6
Value
7.2
Range
7.5
Power
8
Comfort
7.5
Build quality
7.5
Versatility
8
Specifications
Motor & Drivetrain
- Motor type
- Rear hub
- Torque
- 85 Nm
- Assist levels
- Class
- Class 2 (throttle, 20 mph)
- Top speed
- 20 mph
- Throttle
- Yes
Battery
- Capacity
- 14 Ah
- Range (claimed)
- 70 mi
- Range (real-world)
- ~45 mi
- Charge time
- 7 hrs
- Removable
- No
Frame & Comfort
- Frame type
- Step-through
- Material
- Aluminum
- Wheel size
- 20"
- Weight
- 70 lbs
- Max. payload
- 330 lbs
- Suspension
- front
Gearing
- Type
- Derailleur
- Speeds
- 7
- Brand
- Shimano
- Warranty
- 2 yr
Who is this bike for?
Best for
- ✓Commuting riders
- ✓Recreation riders
- ✓Heavier riders (supports up to 330 lbs)
Consider alternatives if you...
- ○Need to lift the bike frequently — at 70 lbs it is heavy
