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Windone

Windone E20/K2 Electric Bike for Adults, Up to 20/28MPH & 40/46.6Miles Range, 350W/750W Ebike with 20 * 3/4 Fat Tire, 374.4/624WH Removable Battery, 7 Speed Electric Bicycle

  • Based on 92 reviews
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$679.99 Why this price?
Memorial Day Sale · 15% off was $799.99

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Returnable until Jan 31, 2026

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Style: K2|750w|624wh


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.
  • 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, rear under suspension, 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.

Bike Type: Electric Bike


Age Range (Description): Adult


Brand: Windone


Number of Speeds: 7


Color: Matte black


Wheel Size: 20 Inches


Frame Material: High Carbon Steel


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: ‎High Carbon Steel


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|624wh


Model Name: ‎Windone K2


Power Source: ‎electric


Wattage: ‎750 watts


Wheel Material: ‎Carbon


Lithium Battery Energy Content: ‎624 Watt Hours


Warranty Type: ‎Lifetime


Maximum Weight Recommendation: ‎330 Pounds


Assembly Required: ‎Yes


Bicycle Gear Shifter Type: ‎Trigger


Skill Level: ‎Beginner


Battery Capacity: ‎624 Watt Hours


Voltage: ‎48 Volts


Minimum User Height: ‎5.4 Feet


Fender Material: ‎Plastic


Derailleur Configuration: ‎Rear


Bicycle Drivetrain Type: ‎Derailleur


Electric Assist Type: ‎Pedelec


Manufacturer: ‎‎ZHEJIANG AIJIU TECHNOLOGY CO., LTD.


Frame Size: ‎16-18 inches


Frame Type: ‎Step-Through


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


Number of Items: ‎1


Part Number: ‎K2


Date First Available: July 29, 2024


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

    • Awesome bike for a tall 11 year old
Style: K2|750w|624wh
It’s a bike solid e-bike. Bought it for our 11 years birthday. He’s 5’3. 107 lbs and he has to be on tippy toes to get on. He has plenty of room to growth with it. It’s been awesome for him. It fits two people so him and I rode it together and our teenage boys even rode it. I highly recommend it!
Reviewed in the United States on November 16, 2025 by Amazon Customer
    • Great bike
Style: K2|750w|624wh
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.
    • Windone customer service is awesome.
Style: K2|750w|624wh
Windone customer service is awesome. We had a problem with our bike and I wrote to support and they have been super helpful and I am very satisfied with this company , their product and service. The bike is great.
Reviewed in the United States on November 5, 2025 by Ana McGary
    • Do not buy. Save yourselves the trouble.
Style: K2|750w|624wh
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
    • Feeling secure
Style: E20|350w|374wh
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
    • its cool bike with wide tires .
Style: K2|750w|624wh
I recently got this Electric Bike, and I couldn’t be happier with my purchase. The installation was a fast , taking just about an hour to complete. This bike’s long battery life is impressive—it comfortably takes me around Santa Monica Beach with family and friends, making our outings fun and worry-free. The bike’s stylish, fashionable design turns heads everywhere we go. Not only does it look cool, but the suspension also feels great, providing a smooth ride even on rougher paths. Charging the battery is convenient too, with a full charge taking roughly four hours. The weight of the bike makes me feel secure and safe while riding. Overall, I highly recommend ... show more
Reviewed in the United States on January 20, 2025 by Jason Wynn
    • Great...when it works. :(
Style: K2|750w|624wh
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
    • Excellent Electric Bike
Style: K2|750w|624wh
Review Image by W. SH W. SH
Review Image by W. SH W. SH
This bike is amazing! Perfect size for my husband. I ordered this for his birthday / Christmas. He really likes it. It reminds him about his motorcycle, nice speed and ride smoothly. The assembly was not bad at all. It took him around 30 minutes and good to go. The quality is decent and sturdy. The weight is pretty heavy. So far, everything is good! He really enjoys it. We are happy with this product! ... show more
Reviewed in the United States on January 31, 2025 by W. SH W. SH

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