U4 Step-Through Foldable Electric Bike
Foldable Convenience with Strong Performance
The U4 E-Bike combines comfort and stability. Its removable battery allows for easy charging, while the 16x2.15" tires provide excellent stability. With a top speed of 25 km/h after unlocking and a step-thru design for easy mounting and dismounting, it’s ideal for riders of all sizes. The foldable frame makes transportation and storage effortless—perfect for any adventure.
Removable 36V 10.4Ah Battery
Powered by a removable 36V 10.4Ah battery featuring 18650 cells, it offers the convenience of easy removal and flexible charging wherever you are.
Button Throttle
The button throttle allows for quick and easy acceleration at the push of a button, ensuring effortless operation.
16 x 2.15" Wide Tires
Equipped with 16 x 2.15" wide tires, this bike provides enhanced stability and a smoother, more controlled ride.
Stable & Secure
With front suspension and both front and rear disc brakes, this bike offers a stable and secure ride, ensuring comfort and safety.
Front and Rear Lights
Fitted with front and rear lights for improved visibility and safety during day and night rides.
Foldable Convenience
The U4 E-Bike features a fully foldable design, making it easy to store in your car's trunk. Its compact size ensures effortless transport, perfect for on-the-go use.
Stability and Simplicity
The 16 x 2.15" tires provide a stable ride, while the step-thru design allows anyone to easily mount and dismount, enhancing the overall riding experience.
Strong Performance
With a powerful motor that reaches values of 250W, the U4 E-Bike effortlessly tackles hills and steep routes, ensuring a consistently smooth and powerful ride.
| A - Handlebar Height | 37.4''-43.31'' |
| B - To Reach | 21.65'' |
| C - Saddle Height | 18.11''-39.37'' |
| D - Rear Rack Height | 20.87'' |
| E - Stand-Over Height | 13.38'' |
| F - Wheelbase | 40.16'' |
| G - Overall Length | 55.11' |
| Recommended Height | 150 cm - 185 cm (4'11" - 6'1") |
| Maximum Load Capacity | 264 Ibs (120 kg) |
Technical Specifications & Sizes
Battery and Charging System
Battery
36V 10.4Ah 18650 Battery Cell
Charger
42V 2A
Drive System
Motor
250W
Max Speed
15.5 mph (25 kph)
Original Factory Speed
Three Power Levels: 6.2/9.3/15.5 mph (10/15/25 kph)
Body and Structure
Frame Material
Alloyed Steel
Maximum Load
264 Ibs (120 kg)
Total Weight
58.4 Ibs (26.5 kg)
Tires and Suspension
Tires
16*2.15" Pneumatic Tires
Suspension
Front Suspension
Display and Lighting
Dashboard
G51 left LCD
Lights
Headlight + Taillight
Range and Certification
Range
30-55 miles (48-88 km)
Vehicle Certification
CE Certified
What’s Included
U4 E-Bike
Charger
User Manual
Tool Kit
FAQs
If your package has not yet shipped, please contact our customer service immediately to cancel your order. If it has already been shipped, please refer to our Return and Refund Policy, especially the "Order Cancellation" section, before contacting customer service.
The recommended height for the U4 E-Bike is between 150 cm and 185 cm (4'11" - 6'1"). The maximum weight is 120 kg (264 lbs).
We offer FREE shipping on all products in our shop.
The warranty for the motor, controller, and frame is 2 years. Tires, saddle, front and rear decorative strips, and fastening covers are covered for 6 months. The rest of the parts are covered for 1 year. For more details, please visit our warranty policy page.
Power meets Comfort, Conquer every Ride
Power meets Comfort, Conquer every Ride
FinBike U4 E-Bike
Power meets Comfort, Conquer every Ride
Power meets Comfort, Conquer every Ride
FinBike U4 E-Bike