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Retro Electric Bike for Adults, 1000W Peak Motor, 28MPH Speed & 60-Mile Range (PAS), 7-Speed All-Terrain Fat Tire Ebike with Cruise Control, UL Certified, Moped E-Bike for Commuting Beach Snow

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Style: K20-1000w 48v 15ah


Features

  • Powerful 1000W Motor for High-Speed PerformanceThe Windone K20 electric bike is equipped with a Peak 1000W motor, delivering a top speed of 28 MPH in Pedal Assist Mode / 20 MPH in Pure Electric Mode (Comply with the regulations of electric bicycle classification 3). Whether you're climbing hills or cruising on flat terrain, this motor provides unmatched power and reliability. Plus, its UL 2849 certified (tested by UL LLC) for safety and durability, ensuring peace of mind on every journey.
  • Long-Lasting 48V 15Ah BatteryPowered by a 48V 15Ah lithium-ion battery, the K20 offers an impressive range of 30-34 miles in Pure Electric Mode and up to 60 miles in Pedal Assist Mode (PAS). The IPX5 waterproof rating ensures reliable performance in light rain, making it perfect for daily commutes or weekend adventures.
  • All-Terrain Fat Tires for Superior Grip and StabilityThe 26" x 4" fat tires are designed for all-terrain adaptability, providing exceptional grip and shock absorption on city streets, sandy beaches, or rugged trails. Enjoy a smooth and stable ride no matter where your journey takes you.
  • 7-Speed System for Precise ControlThe 7-speed Shimano drivetrain allows for seamless gear shifts, making it easy to tackle uphill climbs, rapid acceleration, or smooth cruising. This feature enhances your riding efficiency and ensures a comfortable pace on any terrain.
  • Three Versatile Riding Modes for Every NeedChoose from Cycling Mode, Pedal Assist Mode (PAS), or Pure Electric Mode to match your riding style. Easily switch modes with the intuitive "+" button or by pedaling. Whether you want a workout or a relaxing ride, the K20 adapts to your needs effortlessly.
  • Retro Design with Modern PerformanceThe Windone K20 combines a handsome retro design with modern functionality. Its vintage-inspired details and sleek lines make it a head-turner on the road. Ride in style and feel like a modern-day superhero with this unique electric bike.
  • WINDONEs 24/5 Customer Support for Peace of MindYour satisfaction is our priority. If you have any questions or need assistance with your WINDONE eBike, our dedicated 24/5 support team is here to help. Reach out anytime, and well respond within 24 hours on weekdays to ensure your ride is always smooth and worry-free.

Bike Type: Electric Bike


Age Range (Description): Adult


Brand: Windone


Number of Speeds: 7


Color: Black


Wheel Size: 26 Inches


Frame Material: Aluminum


Suspension Type: Front


Special Feature: Digital Display, Multi-Speed, Adjustable Handlebars, Dual Disc Brake, Adjustable Seat


Included Components: Kickstand, Reflectors, Bell, Pump, Tool Kit


Bike Type: ‎Electric Bike


Age Range (Description): ‎Adult


Brand: ‎Windone


Number of Speeds: ‎7


Color: ‎Black


Wheel Size: ‎26 Inches


Frame Material: ‎Aluminum


Suspension Type: ‎Front


Special Feature: ‎Digital Display, Multi-Speed, Adjustable Handlebars, Dual Disc Brake, Adjustable Seat


Included Components: ‎Kickstand, Reflectors, Bell, Pump, Tool Kit


Size: ‎Large


Brake Style: ‎Disc


Wheel Width: ‎4 Inches


Specific Uses For Product: ‎Freestyle


Item Weight: ‎42 Kilograms


Style: ‎K20-1000w 48v 15ah


Model Name: ‎Windone K20 Electric Bike


Power Source: ‎Electric


Wattage: ‎750 watts


Wheel Material: ‎Ethylene Vinyl Acetate (EVA)


Lithium Battery Energy Content: ‎720 Watt Hours


Warranty Type: ‎Limited


Assembly Required: ‎No


Bicycle Gear Shifter Type: ‎Twist Grip


Bicycle Drivetrain Type: ‎Derailleur


Electric Assist Type: ‎Pedelec (Pedal Assist)


Manufacturer: ‎‎ZHEJIANG AIJIU TECHNOLOGY CO., LTD.


Battery Life: ‎1.07 Hours


Item Package Dimensions L x W x H: ‎63.78 x 30.71 x 11.42 inches


Package Weight: ‎43.5 Kilograms


Brand Name: ‎Windone


Warranty Description: ‎12-month or 6-month warranty for different parts


Material: ‎Aluminum


Number of Items: ‎1


Part Number: ‎K20


Date First Available: March 12, 2025


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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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Top Amazon Reviews


  • Solid & Comfy
Style: E2-750w 48v 13ah
Day one review: 50 y/o disabled Vet. Assembly last night was straight-forward, simply follow the video and use included tools (or pull out a cordless driver and some sockets). Charged the battery over night and fired it up this morning. Immediately got Error Mssg #3, looked in the manual and found a wire that I hadn't connected. Bam, up and running. Directions, videos, and manual in American English. Started at level 1 to get the feel, very mild and comfortable, quickly worked up to #5 and ripped off down my roads. Hit 25 mph and had an absolute blast - Super Comfy. Pros: UL listed battery - Don't buy an ebike without this! Mild, not torquey, plenty fast for an old guy with multiple back injuries. Simple to use, Strong, heavy bike with soft suspension. 750 Watt motor is considered a "pedal bike" by law so can go anywhere a regular bike goes. Cons (for some of you, not me): not really a wheelie, stump jumper, burn out bike. Top speed mid-upper 20s. If that's what you need, you need to look at 1000-2000 Watt range. ... show more
Reviewed in the United States on May 22, 2025 by Ender Ender

  • Trail climbing beast - Fun bike
Style: E2-750w 48v 13ah
The media could not be loaded. I went on a trip recently and rode on a few different e bikes to get around the city as well as take tours. When I got back I had to have one. The standard looking bikes have seats that make your butt hurt after an hour or so of riding, so when I saw this bike with a motorcycle style seat I thought id give it a shot. My included video shows both riding the bike to see the display, as well as the exterior features such as the headlight and brake lights. The models I was riding in Europe did not have this functionality. Normally amazon asks to rate features, but that was not an option so I will rate them below. Comfort: 10/10 the seat is well padded and comfortable for rides around an hour long, there is also space for a second person if you had kids who wanted to ride the bike around. Speed: The bike has 5 levels, and the one I used previously had 9. I think 5 is a decent speed, but I wish it did have 1 or 2 more levels for when you wanted to get back up to speed quick if you have to stop for a railroad track or something on your path. Light: Breaklights are great and 10/10. The headlight I would say is a 7/10. I wish it had a high beam mode or something to get more light out of it. You can adjust the angle of it with the screw, but it could be a bit brighter to see cracks. Brakes: One thing that has been strange to comfortable with is the right side brake does the front instead of the rear, all other bikes I have been on were opposite, but the brakes are disk and work well to stop you. Suspension: This bike has both front and rear suspension. I think he rear could be a bit firmer for heavier people as it does get bouncy, but if you are under like 220lb it will be fine. The front shock is as good as other bikes I have ridden. The tires are also large so you don't have to worry in some grass about getting around. Their size also adds to the comfort. Battery: It shipped with a full battery. The battery also has a key to keep it locked on the bike. The range is about 40 miles using the pedal assistant and I have found its around half if you just use the motor and let it move you. Display: The bike has a display to show speed, power setting, light status (dims when headlight is on), and battery as well as a mileage readout. Note: The +/- controller has the power button on the bottom, the light on the left side. I did not pay attention to the manual and almost missed that. So far the bike has been excellent. ... show more
Reviewed in the United States on July 14, 2024 by James

  • Dead after a few months
Style: E2-750w 48v 13ah
One star for customer service which was great. Reached out to them, they sent a new controller. Didn't fix the problem. Reached out to them again, they sent a new battery but still the bike is dead dead dead. Like I said, customer service was responsive but this isn't about customer service, it's about paying nearly 1k for a bike my son only rode for 3 months . Got as a Christmas gift. Drove the bike to and from school which is about 1/2 mile from our house. Never used it in inclement weather because he was afraid to ruin it some how🤔 Funny because our town is full of Ubereats and Door dash drivers who use ebikes in all types of weather. And that sucked cuz when he didn't use the bike that meant I had to drive him to school =/ Anyway, it was good while it lasted I guess. Now it's just a big heavy piece of ykw that I won't even be able to sell. Sigh ... show more
Reviewed in the United States on June 19, 2025 by DOT

  • Not getting help from Amazon
Style: E2-750w 48v 13ah
Bike came with defective tire. Bike came from China. Amazon will not contact distributor to send us a tire. Says we have to call China or we can send it back. It came unassembled, it’s now assembled. Issue now resolved. Support team sent new tire within 7 days. Had local bike shop install same next day. China stayed on top of problem and are sending me a couple of phone mounts as consideration for $40.00 mounting of new tire. Support team from Windone has been great. ... show more
Reviewed in the United States on May 31, 2025 by susan

  • Good and bad
Style: E2-750w 48v 13ah
I bought this bike for my son back in December 2024. We had the bike for about 2 weeks when things started falling apart . . The assemble was easy and was working fine until 12/28/24 . The electric motor/pedal assist no longer kicked on when prompted. I contacted Amazon and started a claim , they advised me to contact the manufacturer as this bike has a 1 year warranty. The manufacturer responded within a few days and sent out a new controller. Then in March of 2025 one of the tires blew out , I contacted the manufacturer again and they sent out a replacement inner tube within 10 days . In April of 2025, the rear break line broke, I was like here we go again!! I emailed the manufacturer again, and they sent out a new break line within a 10 days . Then unfortunately in May the frame broke! I was so frustrated at this point , I paid a lot of money for this bike and it just kept breaking down time after time and we didn’t even have it for 6 months ! I emailed the manufacturer 1 last time and advised them what happens sent all the pictures. They were very prompt and sympathetic about the issues we had been having and got back to me within a week and advised me that they were sending a brand new bike directly from the manufacturer also stating they were not going to send a refurbished one which made me think.. hmmm maybe Amazon sent me a refurbished bike at the time of the initial purchase and that’s why it kept breaking down!! I only gave the bike 4 stars because the manufacturer was so responsive and really stood behind their warranty . We have the new bike now and fingers crossed .. ... show more
Reviewed in the United States on June 4, 2025 by nora razak nora razak

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