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Windone E20/K2 Electric Bike for Adults | 350/750W Peak Ebike | Up to 20/28MPH | 40/46.6 Miles Range (PAS) | 374/646Wh Battery | All-Terrain 20" Fat Tires | UL 2849 Certified

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Availability: Only 4 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Oct 18
Order within 11 hours and 30 minutes
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Style: K2/750w 48v 13ah


Features

  • 750W Powerful MotorThe K2 electric bike is equipped with 750W motor. In terms of speed, the maximum speed can be increased to 28MPH. (The maximum speed in pure electric mode is 20MPH, and the maximum speed in pedal assist mode is 28MPH). In terms of power, it can support climbing slope is 20%. So even if we define the K2 electric bike as an urban explorer, it will perform well in light off-road activities. Passed UL 2849 certification and the testing laboratory is UL LLC.
  • 48V13Ah Removable BatteryK2 ebike has 48V13Ah high quality lockable battery with UL2849 certified to ensure the ebike long-term safety.The battery has passed IPX5 waterproof test and can ridee in light rain,it is not recommended to riding in heavy rain.Large capacity 624Wh battery fast charging takes 6-7 hours, to protect battery,please use the original charger.
  • 4 Ride Modes for Your NeedsIf you know about e-bikes, you will know that there are different riding modes that can be set up to match the different environments you ride in.The K2 e-bike has four modes to choose from:pure electric mode,PAS mode,pedal exercise mode and cruise control mode.(The actual range is related to riding habits and carrying weight)
  • Comfortable Riding ExperienceWe hope you enjoy riding K2 electric bike,so in the design of buffer system, we have done a lot!The front dual fork absorber, extended sponge cushion and 20"4.0 fat tires, each part of them building K2 electric bikes buffer system, which can minimise the impact of bumpy off-road road conditions on rider body.
  • Urban Explorer K2 E-BikeK2 e-bike is more suitable for casual riding because it has an extended two-person seat, a sturdy frame structure that can carry 330lbs, and a comfortable angled handlebar. The K2 ebike is not only a commuter ebike, it can also go off-road, you can define it. Before riding, please make sure the lines are installed correctly. Before starting, please make sure the battery is turned on and press and hold the accelerator to start.
  • WINDONE 24H Support TeamWe are very concerned about the customer experience with WINDONE electric bike, if you have any questions or suggestions about WINDONE electric bike, please contact the seller or email us in the first time, we will reply to your message within 24H
  • Ride the wind,Chase your dreamsWINDONE is committed to creating cost-effective electric bikes in the hope that young riders will explore the wider landscape with a personalized bike of their own. Whether it is off-road racing or exploring more,WINDONE will be your loyal partner, venturing out into the world with you

Bike Type: Electric Bike


Age Range (Description): Adult


Brand: Windone


Number of Speeds: 7


Color: Matte black


Wheel Size: 20 Inches


Frame Material: EBIKE


Suspension Type: Front fork shoulder shock absorber & Rear suspension


Special Feature: Dual Disc Brake, Dual Suspension, Headlight, LCD-Display, Taillight


Included Components: Charger, Horn, Kickstand, Pump, Tool Kit


Bike Type: ‎Electric Bike


Age Range (Description): ‎Adult


Brand: ‎Windone


Number of Speeds: ‎7


Color: ‎Matte black


Wheel Size: ‎20 Inches


Frame Material: ‎EBIKE


Suspension Type: ‎Front fork shoulder shock absorber & Rear suspension


Special Feature: ‎Dual Disc Brake, Dual Suspension, Headlight, LCD-Display, Taillight


Included Components: ‎Charger, Horn, Kickstand, Pump, Tool Kit


Size: ‎20 inch


Brake Style: ‎Disc


Wheel Width: ‎4 Inches


Specific Uses For Product: ‎All terrain, Gravel, Road, Snow, Trail


Item Weight: ‎88 Pounds


Theme: ‎Sport


Style: ‎K2/750w 48v 13ah


Model Name: ‎K2


Power Source: ‎electric


Wattage: ‎750 watts


Wheel Material: ‎Carbon


Lithium Battery Energy Content: ‎624 Watt Hours


Seat Material Type: ‎Rubber


Warranty Type: ‎Lifetime


Maximum Weight Recommendation: ‎330 Pounds


Assembly Required: ‎Yes


Bicycle Gear Shifter Type: ‎Trigger


Skill Level: ‎Beginner


Minimum User Height: ‎5.4 Feet


Fender Material: ‎Plastic


Bicycle Drivetrain Type: ‎Derailleur


Electric Assist Type: ‎Pedelec


Manufacturer: ‎ZHEJIANG AIJIU TECHNOLOGY CO., LTD.


Battery Life: ‎25 Hours


Frame Size: ‎170cm Centimeters


Item Package Dimensions L x W x H: ‎56 x 31.5 x 13 inches


Package Weight: ‎47.63 Kilograms


Item Dimensions LxWxH: ‎67.32 x 27.56 x 42.91 inches


Brand Name: ‎Windone


Warranty Description: ‎1 year


Material: ‎Aluminum, High carbon steel


Suggested Users: ‎unisex-adult


Number of Items: ‎1


Part Number: ‎K2


Date First Available: July 29, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 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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Top Amazon Reviews


  • Good e-bike
Style: E20/Glossy White
I'm 63 years old and 5' 2 for reference. Seat goes low enough that I have no problem touching the ground with my feet and staying steady while sitting when stopped. Happy so far with this bike for the price. It's my first time with an e-bike. I've had it a week and am enjoying the peddle assist. I still get exercise but I don't want to give up after a mile. I live on an island and now can't wait to explore all the great trails we have here. Easy assembly (per the BF). The only drawback for me, hence 4-star rating, is I find the seat extremely uncomfortable. I have a new, bigger seat arriving today. ... show more
Reviewed in the United States on October 3, 2025 by Karen Karen

  • Great bike
Style: K2/750w 48v 13ah
Assembly was rather straight forward, been using it for maybe 2 months and have 70 Miles logged on it,I can definitely say it's awesome to ride and feel the wind blow through your face, it does not fold, to those who think it may this is literally a 75 IBS chunk of 20MPH steel, it's very powerful for an E-Bike and definetly worth the money for those who weigh a bit more than most E-Bikes support. I have noticed the front mud guard isn't exactly stable however which is the only downside but all in all a fun and worth it purchase for small distance commutes and joyrides ... show more
Reviewed in the United States on July 29, 2025 by Xavier F.

  • Great e-bike and top customer service!
Style: K2/750w 48v 13ah
Very happy with this purchase, bike looks great, is sturdy, battery life is good. Also, I had an issue mounting it (which was my fault, if I'm going to be honest), I was able to reach the Windone team right away and they helped me with my issue, 5 star customer service! Definitely recommended!
Reviewed in the United States on August 19, 2025 by Yoan Esebag Yoan Esebag

  • Feeling secure
Style: E20/Matte Black
I love riding the bike. I am 65 and have a taller ebike but I don't feel secure on the taller bike. I love having to ave a key to ri ad remove the battery. Much harder for someone to steal it. My only draw back is the back tires keeps losing air.
Reviewed in the United States on August 19, 2025 by Ruth E. Lawrence

  • Great support service
Style: K2/750w 48v 13ah
Absolutely amazing support, my kid loves the bike, range is great, sturdy. The only thing is that for me I feel somehow a slight unbalance on my hands when driving, like there is more weight in the left side, but the bike is great and it's a minor thing. Support is really great.
Reviewed in the United States on August 27, 2025 by Lester E

  • Great...when it works. :(
Style: K2/750w 48v 13ah
Our first issue was the front brakes not working. Then, the tires wore out in about 90 days of very sporadic use. Then came the back brake pads needing replaced because the originals were the worst wearing material ever. Now, today, the throttle isn't wanting to work. Mind you, we have only had this for 8 months...of which 3 of the months were too cold to ride it. I expected more for over $800. ... show more
Reviewed in the United States on September 2, 2025 by Sam

  • Do not buy. Save yourselves the trouble.
Style: K2/750w 48v 13ah
A mega fail. Never felt less safe on any bike or motored vehicle. So many issues. The throttle goes from not working to being FAR too sensitive- literally flying off the handle. The battery goes from 60% to zero. The bike is waaaaay too heavy. Does not fold. Not nearly as comfortable as a thing its size should be. I owned and rode many e-bikes- this was hands down the absolute worst. I hope they take back this total lemon. It should not be sold on amazon. ... show more
Reviewed in the United States on September 1, 2025 by Osher

  • Very smooth running bike
Style: E20-350w 36v 10.4ah
Bought it for my wife for an early Christmas present. It was fairly easy to assemble. It's extremely heavy duty. Very smooth running bike. My wife says it's very comfortable to ride, and very easy to get off and on. She said it handles very well. She absolutely loves it. I forgot to mention, I rode it myself, and it really lives up to its name. I couldn't believe how fast it gets you going in just a few seconds. I love the speedometer on it, and that it has a key for starting it. Really makes it more ant-theft. ... show more
Reviewed in the United States on September 24, 2025 by Jp Cody

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