Windone E20/K2 Electric Bike for Adults, Max 20/28 MPH & 40/46.6 Miles Range, 20''×3/4'' Tire and 350/750W Motor Ebike, 7 Speed Urban Commuter Electric Bicycle, 36V10.4AH / 48V13AH Removable Battery
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Availability:
Only 4 left in stock, order soon!
Arrives
Sunday, May 31
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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. 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: 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
Number Of Speeds: 7
Suspension Type: Front fork shoulder shock absorber & Rear suspension
Additional Features: Dual Disc Brake, Dual Suspension, Headlight, LCD-Display, Taillight
Brake Style: Disc
Specific Uses For Product: All terrain, Gravel, Road, Snow, Trail
Power Source: electric
Wattage: 750 watts
Lithium Battery Energy Content: 624 Watt Hours
Bicycle Gear Shifter Type: Trigger
Skill Level: Beginner
Bicycle Drivetrain Type: Electric
Electric Assist Type: Electric Assist
Battery Life: 3.75 Hours
Is Autographed: No
Number of Handles: 2
Wheel Size: 20 Inches
Size: 20 inch
Wheel Width: 4 Inches
Item Weight: 88 Pounds
Warranty Type: Lifetime
Maximum Weight Recommendation: 330 Pounds
Is Assembly Required: Yes
Minimum User Height: 5.4 Feet
Age Range Description: Adult
Brand Name: Windone
Included Components: Charger, Horn, Kickstand, Pump, Tool Kit
Model Number: K2
Model Name: K2
Model Year: 2024
Manufacturer: ZHEJIANG AIJIU TECHNOLOGY CO., LTD.
Warranty Description: 1 year
Item Type Name: electric bike
Color: Matte black
Theme: Sport
Style Name: K2-750w-624wh
Frame Material Type: High Carbon Steel
Wheel Material: Carbon
Seat Material: Rubber
Fender Material: Plastic
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, May 31
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I have always been a slow or late adapter to new technology, styles, and/or fashions. E Bikes are no different for me, I found them complex, expensive, and unnecessary. Eventually I began to realize that there maybe some merit to this new fad. As far as looks, most ebikes imo are relatively clunky or odd shaped due to the battery and need for heavier frame due to the bulky battery and wider rear axle. This bike is no different, I found that it is not pleasing to my eyes, and is somewhat bizarrely designed. I do like the ability to fold the front of the bike down, although this doesn't really provide any improvement for fitting in a trunk or relatively tight space, as the bike is limited with the seat and main frame that really doesn't allow for any down-sizing. Battery life is impressive, however I use this as more of a toy than a major mode of transportation; I average roughly 20 miles traveled on a monthly basis, as such, I only charge this thing monthly. The ability to remove the battery allows me some comfort knowing that I can always replace it if the original fails, but that's really it, it's too difficult for me to remove with the added basket I installed, and the seat isn't really easy to move out of the way. Speed and ride is decent, no shocks or struts leave somewhat of a rough ride; I ended up placing a larger, aftermarket seat on this compared to the original small one that it came with. Max speed is 17mph full out, I weigh roughly 200lbs, and going up hills, the motor quickly begins to bog down, and requires assistance with peddling. I am not certain where the manufacturer got the idea that this bike can go 20/28mph, perhaps going downhill? The motor is strong enough to accelerate from a stopped position on flat ground with no pedal assistance, the same can not be said for a 3% or greater uphill grade. Value for my money was the main reason I purchased this, it is drastically cheaper than most of the same bikes in the same size/capacity range. I found that other brands have some added features, but not enough to entice me to spend extra money for. I ended up adding two baskets to the bike as both the rear and front have no carrying capacity coming from the manufacturer, but the bases do make excellent places to attach aftermarket baskets to. Most importantly: Prospective buyers should consult their local police department prior to buying any ebike; in my community ebikes are classified in three groups based off of the size of the bike's motor wattage. based on the wattage then dictates who can ride, what must be worn (safety gear - helmets taillight/headlight, etc), and where those bikes can be used. The larger wattage >750 watt motors are essentially illegal where I live unless kept on private property, this is due to the speeds and potential for injuries as the larger the wattage the faster those things can go. I'm happy with this bike, I haven't had any issues with function as yet, below is a list of items I did buy extra for this bike: Attach mirrors for rear-view Helmet Large lock with chain for theft prevention Baskets (2) front and back
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Reviewed in the United States on March 17, 2026 by Past_DVO_Present
Okay, I seriously love this bike. I have an injury that makes riding bikes very difficult, but because this bike is electric it gives me the ability to ride again like never before. It almost feels like cheating it is so good. I can only really pedal with one leg so the bike's electronic motors kick in and help me out massively. The bike rides super comfortable. I noticed the pedals were a little small for my shoes and feet, but that's more of a me issue and I might just have to get different pedals. The cost was super reasonable and I'm planning on getting another one of these. I've got plans to kit it out with like a backpack or storage attachments and probably going to get one of those pull behind things to go with it for the kiddos. Anyways Its really great for making quick trips to the post office and the battery lasts that long and I haven't discovered how long the battery will go but its great so far! The assembly was easy, I'm fairly proficient in mechanical builds so if you are like me it should be fine for you. The shocks keep you pretty comfortable and there's a lot of stability when riding it. I find that it works well as far as function goes.
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Reviewed in the United States on December 14, 2025 by desk_mouse
Great overall quality craftsmanship with the frame of the body of the bike in general but it is definitely a lot slower than other bikes comparatively speaking. I just think I should have shopped around a bit more and spent a little more money 🤑
Reviewed in the United States on March 26, 2025 by Tim Matthews
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.
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Reviewed in the United States on September 24, 2025 by Jp Cody
Slow broken down in 7 rides
Reviewed in the United States on March 9, 2026 by ToulouseDetail
Could be better.
Reviewed in the United States on January 6, 2026 by Lizzy Phillips
A great reliable bike. I would definitely recommend this purchase if you are looking to get your first E-bike or just a new upgrade.
Reviewed in the United States on February 3, 2026 by Diron Octavius
The car has a stylish appearance and good quality. It runs quite fast at around 20-30 miles per hour. It has strong power, vacuum explosion-proof tires, and very comfortable shock absorption. It is no longer afraid of bumpy roads. After test driving, the performance is perfect in all aspects and there are no other problems. It is very easy to fold and does not take up too much space when storing the spare box. A very satisfying shopping experience!
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Reviewed in the United States on January 21, 2025 by Josh