- Home
- /
- Folding Electric Bikes
- /
- Isinwheel U4
Isinwheel U4 Foldable Step-thru Electric Bike
Compact and commuter-ready
SPEED19 Mph
RANGE55 Miles
MOTOR250 W
BATTERY10 Ah
CHARGING4 Hours
WEIGHT58 Lbs
Discover the perfect blend of power, convenience, and style with the Isinwheel U4 Foldable Step-thru Electric Bike. Designed for urban commuting, this e-bike offers a seamless ride through city streets and beyond.
Powerful Performance
Equipped with a robust 250W motor that peaks at 500W, the Isinwheel U4 is built to tackle inclines up to 20% effortlessly. Whether you're navigating hilly terrains or cruising on flat roads, this bike ensures a smooth and powerful ride.
Impressive Range and Speed
The U4 features a high-capacity 375Wh battery, allowing you to travel up to 88 km on a single charge. With four riding modes, you can adjust your speed up to 19 mph, making it ideal for both leisurely rides and quick commutes.
Convenient and Portable
Designed with portability in mind, the Isinwheel U4 features a lightweight aluminium alloy frame and a foldable design. This makes it easy to store in your car boot or carry on public transport. The detachable battery adds to its convenience, allowing for easy charging wherever you are.
Safety and Comfort
Safety is paramount with the U4. It comes equipped with an IPX4 waterproof rating, ensuring reliable performance in various weather conditions. The bike also features a large LCD screen for easy monitoring and an adjustable headlight for night rides.
Specifications at a Glance
- Motor: 250W (Peak 500W)
-
- Max Range: 55 Miles (88 KM)
-
- Battery: 36V, 10.4Ah
-
- Charging Time: 4–5 hours
-
- Frame Material: Aluminium Alloy
-
- Weight: 58 lbs (26.5 kg)
-
- Tyre Size: 16 × 2.15″
-
With its blend of performance, portability, and style, the Isinwheel U4 is your ideal companion for city commuting. Experience the freedom of electric biking today. Order now for fast UK delivery.
- Motor: 250W (Peak 500W)
- Max Range: 55 Miles (88 KM)
- Battery: 36V, 10.4Ah
- Charging Time: 4–5 hours
- Frame Material: Aluminium Alloy
- Weight: 58 lbs (26.5 kg)
- Tyre Size: 16 × 2.15″
-
With its blend of performance, portability, and style, the Isinwheel U4 is your ideal companion for city commuting. Experience the freedom of electric biking today. Order now for fast UK delivery.
- Motor Power250 W
- Range55 Miles
- Battery10 Ah
- Speed19 Mph
- Charging Time4 Hrs
- Input Voltage42
- Frame MaterialAluminium Alloy
- Weight58 Lbs
- Tire Size16 In
Yes. All electric bikes sold by Biktron are brand new, factory-sealed, and sourced directly from authorized manufacturers and official distributors.
You can select your bike based on riding style (city, mountain, cargo, folding), range, motor power, and terrain. If you’re unsure, our team can help you choose the best model for your needs.
Yes. Every e-bike battery is brand new and original from the manufacturer, with full safety certification and performance testing.
Yes. Each e-bike undergoes a quality control check before dispatch, including electronics, brakes, motor response, and battery performance.
Yes. All electric bikes purchased from Biktron include a manufacturer warranty. Warranty duration depends on the brand and model.
Standard delivery usually takes 2 to 7 business days within the UK. Delivery times may vary for remote areas.
We accept Stripe, PayPal, Apple Pay, Google Pay, and debit/credit cards. All payments are secured with SSL encryption.
Yes. You can return your bike within 14 days of delivery if it is unused, in original packaging, and in resalable condition.
Most electric bikes arrive 85–90% pre-assembled. Basic setup such as handlebars, pedals, and seat adjustment is usually required.
Currently, Biktron focuses on deliveries within the UK. International shipping may be added in the future.
Please note that the use of electric scooters and electric bikes in the UK is subject to specific regulations.
Electric Scooters:
Currently, privately owned electric scooters are not permitted on public roads, pavements, or cycle lanes. They are only legal on private land with the landowner’s permission.
Riders are advised to familiarize themselves with local laws and guidelines to avoid potential fines or penalties.
Electric Bikes (E-Bikes):
Electric bikes that meet UK government criteria (pedal-assisted, motor limited to 250W, and a maximum speed of 15.5 mph) are classified as Electrically Assisted Pedal Cycles (EAPCs). These can be used on public roads and cycle lanes without a license, tax, or insurance.
Riders must be at least 14 years old to legally ride an EAPC in the UK.
By purchasing and using these products, customers acknowledge their responsibility to comply with all applicable laws and regulations. Our company cannot be held liable for misuse or legal consequences resulting from non-compliance.
For more information, please refer to the UK Government’s official guidelines.
Related Models
More From This Brand
Explore additional electric bikes from the same brand, offering similar quality, performance, and value to match your riding needs.
Isinwheel U4 Foldable Step-thru Electric Bike
- SPEED19 Mph
- RANGE55 Miles
- MOTOR250 W
- BATTERY10 Ah
Discover Your Match
Let’s Find Your Dream Electric Bike
Answer a few fun questions and we’ll match you with the e-bike that fits your lifestyle, speed, and spirit.
Start the Quiz