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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

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$289.99

$ 99 .00 $99.00

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About this item

  • 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



Product Description

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U4 ebike for adults

Merchant Video
  • Newly upgraded control chip & Hall sensor achieved the perfect balance of precision and power.Brings the smoothest launch and smooth ride possible

  • The U4 e-bike features 16-inch tires and a UL2849-certified 374.4Wh upgraded lithium-ion battery and offers a range of 25 miles (electric mode) to 55 miles (pedal-assist).

  • Hello, the U4 electric bike supports 4 modes: pedal assist mode, pure electric mode, pedal mode and walk Assist mode.

  • The Step-Thru frame is more friendly to all riders of different heights and ages, getting on and off the bike with ease. The foldable design makes this e-bike easy to store and carry, perfect for tight spaces or traveling.

Your Daily Distance Just Got Fun

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electric bike,Ebike,Electric Bike

HH21
Reviewed in the United States on March 24, 2025
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.
Michael
Reviewed in the United States on March 21, 2025
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.
Customer
Reviewed in the United States on February 6, 2025
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.
MW
Reviewed in the United States on February 10, 2025
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!
Berenis
Reviewed in the United States on January 31, 2025
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.
Ayse Gul Akkor
Reviewed in the United States on December 1, 2024
Assembling is a little bit challenging, but it is a powerful and nice to drive bicycle.I recommend it.
Customer
Reviewed in the United States on November 19, 2024
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.
Charles E. Byrd
Reviewed in the United States on November 19, 2024
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!
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