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The Cybervelo EK4 is a foldable step-through fat-tire electric bike with a 1000W peak rear hub motor, 7-speed Shimano derailleur, and dual mechanical disc brakes with EABS. This Pro (50Ah) configuration ships in White with a 48V 50Ah 48V removable lithium-ion battery, 20" anti-slip puncture-proof fat tires, front fork plus suspension seatpost, and an LCD display with three riding modes.
In brief: Folding. 48V 50Ah battery. Unclassified / Off-Road. Up to 48 km/h. Steel frame. From $737.
Specs verified Jun 26, 2026
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Specifications
Classification
- E-Bike Class
- Unclassified / Off-Road
- Bike Type
- Folding
Motor
- Motor Position
- Rear Hub
- Peak Wattage
- 1000W
- Top Assist Speed
- 48 km/h
Battery
- Voltage
- 48.0V
- Capacity
- 50Ah
- Energy
- 2400Wh
- Chemistry
- Li-ion
- Estimated Range
- Up to 145 km
Frame & Build
- Frame Material
- Steel
- Frame Style
- Step-Through
- Wheel Size
- 20" x 4" (Fat)
- Folding
- Yes
Drivetrain & Brakes
- Gears
- 7-speed
- Drivetrain
- Derailleur
- PAS Sensor
- Cadence
- Throttle
- Yes
- Brakes
- Mechanical Disc
Features
- Suspension
- Front Only (Hardtail)
- Integrated Lights
- Yes
- UL Certified
- No
