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isinwheel U4 16" Folding Electric Bike for Adults, 750W Peak Motor with Max 55Miles PAS Range & 19MPH EBike, 374.4Wh Battery Electric Bicycles Step-Thru Commuter E Bikes for Adults and Teens

  • Based on 82 reviews
Condition: New
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$389.99 Why this price?
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Availability: In Stock.
Fulfilled by isinwheel-Shop

Arrives Apr 5 – Apr 9
Order within 1 hour and 28 minutes
Available payment plans shown during checkout

Color: Black


Style: Standard


Features

  • Feel Unmatched Performance: Powered by a 500W (Peak 750W) brushless motor, the U4 e-bike reaches max speed of 19MPH and offers a range of 25 miles (electric mode) to 55 miles (pedal-assist). This electric bicycles features 16-inch tires and a UL2849-certified 374.4Wh upgraded lithium-ion battery for an optimal riding experience
  • Precision Meets Power:Newly upgraded control chip & Hall sensor achieved our electric bike perfect balance of precision and power. Accelerate the e bike in 3.8 seconds and smooth takeoff, Feel smooth and comfor every ride
  • Certified for Safe Rides: Certified to meet UL2849 and CFR1512 standards, our e-bike features upgraded dual disc brakes for precise braking. The 75LUX front light, reflectors, and rear lights ensure enhanced visibility and safer ebike riding
  • Foldable & Ultra-Light Frame:The foldable design makes this Electric Bicycles easy to store and carry, perfect for tight spaces or traveling. Whether you're at home, in the office, or on public transportation, you can effortlessly fold the e bike and put it away
  • Various Riding Experience: Enjoy the U4 electric bike's 3+1 riding modes for a fulfilling journey! Cruise, exercise, or commute with ease by selecting the mode that suits your needs. Plus,our e-bike also supports handlebar bags and rear baskets to lighten your load for extra convenience

Bike Type: City Bike


Age Range (Description): Adult


Brand: isinwheel


Number of Speeds: 1


Color: Black


Wheel Size: 16 Inches


Frame Material: Iron


Suspension Type: Dual


Special Feature: New upgraded control chip & Hall sensor,Foldable Design& Lightweight & Portable,High-density Padded Seat,Max Ragne 25-55Miles(PAS) See more


Included Components: Cargo Rack


Bike Type: ‎City Bike


Age Range (Description): ‎Adult


Brand: ‎isinwheel


Number of Speeds: ‎1


Color: ‎Black


Wheel Size: ‎16 Inches


Frame Material: ‎Iron


Suspension Type: ‎Dual


Special Feature: ‎New upgraded control chip & Hall sensor,Foldable Design& Lightweight & Portable,High-density Padded Seat,Max Ragne 25-55Miles(PAS)


Included Components: ‎Cargo Rack


Size: ‎Small


Brake Style: ‎Disc


Style: ‎Standard


Model Name: ‎U4 ebike


Power Source: ‎Electric motor


Wattage: ‎7.5E+2


Wheel Material: ‎Aluminum


Lithium Battery Energy Content: ‎374.4 Watt Hours


Seat Material Type: ‎Vinyl


Warranty Type: ‎Limited


Maximum Weight Recommendation: ‎1.2E+2 Kilograms


Assembly Required: ‎No


Bicycle Gear Shifter Type: ‎Thumb


Number of Handles: ‎2


Bicycle Drivetrain Type: ‎Direct Drive


Electric Assist Type: ‎Pedelec


Manufacturer: ‎Shenzhen Xincheng Times Technology Co.,Ltd


Brand Name: ‎isinwheel


Warranty Description: ‎1


Material: ‎Carbon steel, Iron


Date First Available: August 20, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Apr 5 – Apr 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Excellent Value for an Ebike
Color: Black Style: Standard
We recently got this eBike for our one of our kids and it's been an absolute hit. 1. **Easy and Fun to Ride:** The pedal-assist feature makes riding super easy and enjoyable. 2. **Long-Lasting Battery:** The battery life is amazing! 3. **Durable and Cool Design:** The bike is built to last, with a sturdy frame. 4. Comfortable and Safe Ride:** The bike provides a smooth and comfortable ride, even on uneven paths. The adjustable seat and handlebars make it easy to find the perfect fit. 5. The easy-to-read display panel shows speed, distance, and battery level. The built-in lights and bell add extra safety, making it perfect for both daytime and evening rides. Overall, this eBike has exceeded our expectations. It's a fantastic way to enjoy outdoor activities, stay active, and have endless fun. Highly recommend it for any family looking to upgrade their biking experience! ... show more
Reviewed in the United States on February 10, 2025 by MW MW

  • Fun and great to get around.
Color: Black Style: Standard
This U4 is the perfect size for me. We bought a U5 for husband. Very sturdy EBikes and easy to handle. Been riding them around the neighborhood and local burger joints. Our grandson really liked them so we bought him a U5 Pro Isinwheel for Christmas. Long battery life and very easy to maneuver. All 3 EBikes were very easy to put together. I would highly recommend these Isinwheel e-bikes. ... show more
Reviewed in the United States on November 19, 2024 by Amazon Customer

  • Nice bike order an extra battery.
Color: White Style: Standard
Nice bike, however battery doesn't last as described. I gave 5 stars as the seller sent me another battery. The bike is sturdy and rides well. Great seller communication. My neice likes the bike. She weighs 140 lbs and it gets her around our neighborhood stores. Having the extra battery is nice. Overall a great 👍 buy. ... show more
Reviewed in the United States on March 21, 2025 by Michael

  • A compact and good looking electric bike
Color: White Style: Standard
I am very happy to have purchased this bike. It was easy to assemble, only took 30 minutes to put all the parts together. The bike is a bit heavy but it is my understanding that most electric bikes are heavy. The bike is sturdy and stable and rides smoothly even on manual mode. The best part is the battery is removable which makes the bike lighter to carry when the battery is removed. It can also be folded and store in a tight space in my apartment which is a bonus feature for me. Another great feature is the extra space on the back that allows me to carry stuff. I would recommend this bike to others. Excellent value. ... show more
Reviewed in the United States on February 6, 2025 by Amazon Customer Amazon Customer

  • Faulty brake, hassle to deal with customer service
Color: White Style: Standard
Front brake broke off on 2nd or 3rd ride on a hill. My daughter who was riding down a hill is only a little over a hundred pounds and crashed because of this faulty equipment. We had followed the directions as provided to a the letter to assemble the bike. When reaching out to their customer service, you have to go back and forth via email and it takes them 2-3 days to respond, only to ask for more video and picture proof of issue, instead of trying to solve the problem in one shot. BIG HASSLE!!! Bike should be fun but overall a hassle and unsure about its safety, or if it was just a fluke. ... show more
Reviewed in the United States on March 24, 2025 by HH21

  • A Vacation On Two Wheels!!!
Color: Black Style: Standard
The Isinwheel U4 feels like a vacation on two wheels. It's a simple pleasure. It was simple to put together. It's simple to operate (I barely had to read the user's manual). I can say more but I will get on with my review. I purchased this for my wife. I wanted something that was sturdy and had some decent power, but not intimidating. It also had to look cool. This bike fits the bill perfectly. I put the bike together in less than 20 minutes. The battery had a decent amount of juice, so I didn't charge it fully before taking the test ride. I'm 6' 2" , 220 lbs. We live on a hilly street. I was able to zip up and down the streets fairly easily. I did have to use PAS but for the most part the ride was smooth and quiet.After the test drive, I took my wife and bike over to a local park for her test ride. How did the ride go? She was thrilled. She marveled at the bike's smoothness and quietness. She learned how to use the controls very quickly. The only problem that was noted was a front brake squeal. I adjusted the brake without any problems. The bike is very solid and heavier than expected. Nevertheless, I consider this a good purchase. Buy this bike. For it's price, it is a solid value! ... show more
Reviewed in the United States on November 19, 2024 by Charles E. Byrd Charles E. Byrd

  • Very good ebike.
Color: Black Style: Standard
Solid built, the e-bike perform very well; assembling was easy, took me less than half an hour to put it together. Fast ship and customer support was excellent.
Reviewed in the United States on January 9, 2025 by Lou

  • Smooth and easy to ride/pedal
Color: Black Style: Standard
Really like how smooth and easy it is to ride. The size is a good size. The battery is removable and easy to charge. Assembly was pretty straightforward and the manual was easy to read. Only slight inconvenience is how heavy it can be to carry when folded to be put away. Other than that I really enjoy riding the bike and the speed is perfect for cruising on short trips. Got it for a reasonable price. Worth the price. ... show more
Reviewed in the United States on January 31, 2025 by Berenis

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