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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 67 reviews
Condition: New
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$389.99 Why this price?

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Availability: In Stock.
Fulfilled by isinwheel-Shop

Arrives May 16 – May 18
Order within 14 hours and 53 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: Electric Bike


Age Range (Description): Adult


Brand: isinwheel


Number of Speeds: 3


Color: Black


Wheel Size: 16 Inches


Frame Material: Aluminum


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


Style: Standard


Bike Type: ‎Electric Bike


Age Range (Description): ‎Adult


Brand: ‎isinwheel


Number of Speeds: ‎3


Color: ‎Black


Wheel Size: ‎16 Inches


Frame Material: ‎Aluminum


Suspension Type: ‎Dual


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


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


Bicycle Drivetrain Type: ‎Direct Drive


Electric Assist Type: ‎Pedelec


Manufacturer: ‎Shenzhen Xincheng Times Technology Co.,Ltd


Brand Name: ‎isinwheel


Date First Available: September 20, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 16 – May 18

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Very easy to operate & assemble
Color: Black Style: Standard
This is an awesome bike. Easy to assemble & operate. The price is unbelievable. And very convenient. Folds up just right & fits in the trunk of my car. I am contemplating buying another. Because you can actually fit 2 of them in thr trunk.
Reviewed in the United States on April 10, 2025 by James torres James torres

  • 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

  • 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

  • 16” wheel foldable e-bike.
Color: Black Style: Standard
Fantastic foldable adult size e-bike, it’s even better than I expected! Took about an hour to put together, had good instructions! Would recommend it to anyone that likes to be closer to the ground. It is very easy to handle unlike the full size e-bike that I have. This bike is not heavy and is easily manageable. Love it! ... show more
Reviewed in the United States on April 20, 2025 by Jana

  • 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

  • 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

  • Fun Bikes
Color: Black Style: Standard
Bikes work really well. They have plenty of power and the battery's last a long time. We don't even use power level 3, power level 2 is plenty fast for us , plus we like the "power assist" and doing some of the pedaling ourselves. Power level 3 would be faster than I could pedal. The assembly was easy, took my wife and I about 1/2 hr.. The only complaint I have is that the users manual is a little sketchy, and we had to figure out some of the functions thru trial and error. All up though it's a good bike for a really good deal 👍 ... show more
Reviewed in the United States on April 18, 2025 by Lino M. Lino M.

  • Great bike
Color: Black Style: Standard
Easy to put together easy to follow instructions runs and drives great!
Reviewed in the United States on April 13, 2025 by RG Forrester RG Forrester

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