
-
36V 10.4Ah
Battery
-
55 Miles
Max Range
-
500W
Powerful Motor
-
22 MPH
Top Speed
-
16*2.15"
Pneumatic Tire
-
Dual disc brake
Brake
-
Suspension
Reinforced saddle
-
20%
Hill Climbing Ability
U4 Ebike
The U4 e-bike features a foldable design for easy storage and transport, along with a 36V 10.4AH removable battery that can be charged separately for added convenience. The low step-through frame ensures effortless mounting and dismounting, making it the perfect choice for riders seeking comfort and practicality on every ride.

Features
Motor
Rated 250W (Max 500W)
Battery
36 V, 10.4 Ah
Max Load
264 lbs (120 kg)
Range
35-55 miles (55-90 km)
Speed
6.2/9.3/15.5/22 MPH
(10/15/25/30 KM/H)
Rider Height
5'3" ~ 6'3" (160cm ~ 192cm)
Included
1x E-Bike×1 (Partially Assembled)
1x Seat (with Seatpost)
1x Front Wheel
1x Front Fender
2x Pedal
1x Charger
1x Throttle
1x User Manual
1x Battery Key
1x Toolkit
Warranty
2 Years
Mechanical
Motor
Rated 250W (Max 500W)
Battery
36 V, 10.4 Ah lithium battery. Waterproof IP65 (included)
Range
35-55 miles (55-90 km)
Charger
Standard 100V~240V AC, 42V 2.5A Smart Charger (included)
Battery Charge Time
4~5 hours
Battery Lifetime
800 charges
Frame
Alloy steel folding frame
Parts
Tires
16*2.15" pneumatic tires
Saddle
Breathable ergonomic sport cushion seat
Seat post
Adjustable height
Throttle
6.2/9.3/15.5/22 MPH
(10/15/25/30 KM/H)
Front Light
111 lumen LED
Safety
Brake
Disc brakes front + rear
Light
LED, headlight and taillight
Suspension
Front Suspension
Dimensions & Capacity
Bike Weight
58.42 lbs (26.5 kg)
Bike Dimension
143*53*110 cm / 56.3*20.9*43.3 in.
Packing Size
126*21*65.5 cm / 49.6*8.3*25.8 in.
Total Payload Capacity
264 lbs (120 kg)
Warranty
Frame
2 years
Parts
2 years
Battery
1 year
Geometry

Height | 4'9" ~ 6'1" |
Total Length | 56.3'' |
Seat Adjustable Height | 29''-36'' |
Handlebar Height | 40.5'' |
Foldable Length | 32.2'' |
Foldable Height | 27'' |
FAQ
- About U4
- About Policy
Step 1:
Keep the bike turned on.
Step 2:
Simultaneously press the "+" and "-" buttons to enter the P settings page.
Step 3:
Press the "M" button to switch to P05.
Step 4:
Press the "+" or "-" button to change the speed limit to 35km/h.
You can click the following link to watch the unboxing and assembly tutorial of U4 Electric Bike:
Unboxing and Assembly Video
Press and hold the "M" button for 3 seconds to turn the e-bike on or off.
The U4 model has four speed modes. Press the "+" button to increase the speed and the "-" button to decrease the speed. In the power-off state, hold the brake lever and press the "M" button for 5 seconds to change the speed mode to 35 km/h.
Several factors can affect the speed and performance of an electric scooter:
· Rider weight: A higher rider weight may affect the scooter's maximum speed.
· Terrain and slopes: Riding on hilly or uneven terrain may reduce performance compared to a flat road.
· Battery charge: A low battery may cause the scooter to limit speed or power to save energy.
Settings or riding mode: Check if your scooter is in a specific mode (e.g. Eco mode) that limits maximum speed and power. Switching to Sport mode or a more powerful setting may help.
If your scooter is still under warranty and you suspect a defect, we can arrange for further inspection and, if necessary, a replacement.
There can be a number of reasons why your brakes are not working properly. Here are some common reasons and possible solutions:
· Brake failure or brake retardation:
Loose or worn brake cables can affect brake performance. Please check that the brake cables are properly adjusted and tightened.
Worn or damaged brake pads can also be the cause. In this case, they should be replaced.
· Loud brake noises:
Dirt or deposits on the brake pads or brake discs can cause noises. A thorough cleaning helps ensure smooth operation.
If the brake pads are badly worn or damaged, they should be replaced to eliminate the noise.
· Damaged brake pads or brake discs:
If you find obvious damage to the brake pads or brake discs, such as deformation or severe wear, they need to be replaced.
Please check your brake system for any of the above problems. If you are not sure, please send us a video or picture of your brake system so that we can help you further.
If the problem persists or cannot be solved by yourself, please let us know. We will take the necessary measures to repair or replace the defective part.
After starting the electric vehicle, long press the "M" button to turn on the headlights.
The specifications listed in our product manuals may sometimes differ from the actual product due to customs regulations and transportation policies in different regions. To ensure compliance and smooth delivery, certain specifications may be adjusted accordingly.
For the most up-to-date and accurate product details, please refer to the specifications listed on our official website. If you have any questions, feel free to contact our support team.
🚚Fast & Free Delivery
Our multiple warehouse locations offer free shipping to the United Kingdom. Orders will be delivered within 1-3 business days.
💝Return & Refund Guarantee
Our warranty policy covers all orders for up to 12 months after sales, and the 30-day return and refund policy allows you to buy with peace of mind.
📞Lifetime Technical Support
Our professional service continues long after your purchase. Feel free to contact iScooter‘s technical support team at support@iscooterglobal.co.uk, or call +44 188 878 5356 / +44 808 502 0608(9AM-6AM).
If the order has not shipped, reach out to our customer service team and they will help you with order cancellation.
If the order has already shipped out, it will be treated as a return. You will need to contact iScooter Customer Service at support@iscooterglobal.co.uk to start the returns process.
We understand your return and refund request, but according to our policy, we do not support returns or refunds for accessories.
Therefore, we are unable to meet your request.
If you need an invoice, please contact our customer service at support@iscooterglobal.co.uk. Please provide the email address or address you used to place your order. After receiving your request, we will send you an invoice within 24 hours. Please also check your email inbox.
We accept Paypal, Visa, MasterCard, American Express, and Apple Pay, Klarna.