5TH WHEEL K8 Electric Bike for Kids, 250W Electric Balance Bike Ages 3-5 Years Old, Kid Electric Motorcycle with 3 Speed Modes, 12 inch Inflatable Tire and Adjustable Seat
Condition: Used - Very Good
Buy Now, Pay Later
As low as
/ mo
Learn more
- – Up to 36-month term if approved
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 2 left in stock, order soon!
Arrives
Sunday, Sep 7
Recently Viewed
Color: Black
Features
- Perfect Electric Bike for Kids: The K8 kids balance bike is designed for kids aged 3-5, offering an enjoyable and safe riding experience. As an entry-level electric balance bike, it's the perfect companion for children learning to ride. Let your kids adapt to riding at their own pace, fostering confidence and courage.
- Adjustable Speed Gear: This K8 kids electric bike features an adjustable three-gear system, allowing kids to control their speed effortlessly. Starting in the first gear, kids can ride at a comfortable pace and gradually adjust as they become more familiar with the bike. With safety in mind, this kids electric bike feature anti-slip grips and fixed pedals.
- Long-Lasting Battery: The electric bike for kids comes with a removable 22.2V 2.5Ah battery, which supports to charges the bike directly or can be removed and charged independently. Powered by a 250W motor, it reaches speeds of up to 11mph and covers a range of 7.5 miles on a full charge. When your child prefers a non-elecric balance bike experience, simply remove the battery.
- Safe and Simple Riding: Safety is essential with the kids electric balance bike. The K8 is equipped with a reliable e-brake system that achieves efficient and responsive braking. Simply press the left brake to stop. The bike also features a sliding assist to start throttle, preventing accidental starts and ensuring safer rides. The suitable seat height enables kids to stop the kid bike with their feet.
- Comfortable Riding: K8 kid electric bicycle features an adjustable, soft seat tailored to your child's height. As kids grow quickly, the K8's adaptable seat ensures ergonomic seating during their riding. Equipped with 12-inch air-filled tires, the K8 provide a comfortable ride on ground, dirt, and grassensuring smooth explorations.
- The Surprise Present for Your Kids: The K8 Kids Electric Balance Bike brings lots of fun, fostering confidence and bravery in your child's riding experience. Owning their own bike enhances their sense of pride. Whether for birthdays, holidays, summer vacations, or Christmas, the K8 is the ideal present for your child.
- Tips: Gear switching and walking mode--After power on, press mode button to start shifting, first gear, second gear, third gear, walk mode. To start the first gear, kick off the ground to glide the bike for a short distance, then press the accelerator. For second and third gears, simply press the accelerator without gliding. K8 electric balance bike has passed stringent UL 2849 testing.
Bike Type: Balance Bike
Age Range (Description): Kids
Brand: 5TH WHEEL
Number of Speeds: 3
Color: Black
Wheel Size: 12 Inches
Frame Material: Aluminum
Suspension Type: Dual
Special Feature: Digital Display, Portable, adjustable, Rechargeable, Adjustable Seat
Included Components: Charger, Electric bike for kids, User Manual
Bike Type: Balance Bike
Age Range (Description): Kids
Brand: 5TH WHEEL
Number of Speeds: 3
Color: Black
Wheel Size: 12 Inches
Frame Material: Aluminum
Suspension Type: Dual
Special Feature: Digital Display, Portable, adjustable, Rechargeable, Adjustable Seat
Included Components: Charger, Electric bike for kids, User Manual
Size: Large
Brake Style: Disc
Item Weight: 7.26 Kilograms
Style: Modern
Model Name: KB08
Power Source: Rechargeable Battery
Wattage: 250 watts
Wheel Material: Plastic
Year: 2023
Lithium Battery Energy Content: 55.5 Watt Hours
Warranty Type: Limited
Maximum Weight Recommendation: 50 Kilograms
Assembly Required: Yes
Bicycle Gear Shifter Type: Trigger
Is Autographed: No
Minimum User Height: 36 Inches
Manufacturer: Invanti (Beijing) Technology Co., Ltd.
Item Package Dimensions L x W x H: 31.8 x 15.25 x 7.7 inches
Package Weight: 8.75 Kilograms
Brand Name: 5TH WHEEL
Date First Available: August 23, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Sep 7
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Top Amazon Reviews
Color: Black
Outstanding product. I recommend this to everyone. My 3 year old dominates this thing. My 7 and 9 year olds try to steal it from him. And for all those bitching about battery life, it’s 100% user error. When you first get the bike, charge the battery for a solid 24 hours. Wait until the battery dies before you fully charge it again. Stick to the battery dying before you fully recharge. I’ve had ours for a while now and we get an easy hour of run time, which is a lot considering the speed he is getting.
...
show more
Reviewed in the United States on August 7, 2025 by Artin Boghozian
Color: Black
Bought this for my son, he rode it around for a while. Absolutely loved it. Good speed. Perfect for a kid that wants try his hand in the motocross world. Affordable. My issues are as followed. The tires kept going flat. We just rode on the street. They didn’t hold air very well. I bought some heavy duty tubes and that fixed the issue. Second issue is the bike just turned off and will not work anymore. I contacted then company directly and they were responsive and sent me a new throttle, brake and controller. I installed all of these and nothing worked. Took it to a local electronics guy here in my city and he told me the internal wiring is fried. No good. He said it’s cheaper to buy a new one. Contacted company again and they. Said the bike was still under warranty and agreed to send another bike. I was extremely happy about that but now they will not return any emails. Radio silence. So I’m assuming I’m just S-O-L. It sucks cause my 3 year old love this bike. And they said they would get him another bike sent out and now nothing. Will update if I hear back from them! Updated: 4/21/25 Just got a new bike in the mail!
...
show more
Reviewed in the United States on April 9, 2025 by Caleb Hartman Caleb Hartman
Color: Black
I normally never write reviews good or bad but this product deserves an immediate review. It’s my belief that this product should be a complete recall as it almost cost my son his life! While riding around my quiet neighborhood street my son who had already demonstrated great ability on his k8, ran straight off the cul-de-sac and into a yard before crashing. He was not injured and when I asked him what happened he told me the bike would not stop. I didn’t understand this till a few days later when I was riding my bike next to his k8. We were approaching a busy 40mph street and I could see he was not slowing down. I yelled and yelled with desperation in my voice for him to stop. He then yelled back “I can’t”! We crossed the busy road together and by the grace of God there was no cars crossing. I peddled next to him and saw that his thumb was completely off the throttle yet the bike continued at full throttle. I told him to hold the power button off and that was the only way we got the bike to stop. Insanely dangerous! Till this point I believed the bike to be an awesome learning tool but please learn from my lesson.
...
show more
Reviewed in the United States on November 16, 2023 by Norman scott loebker
Color: Black
Great quality, works great & perfect for my 5 year old.
Reviewed in the United States on July 18, 2025 by jennifer
Color: Black
UPDATE: Company had sent out a new bike (this is the third one) and it has finally worked just fine, brake works and throttle doesn’t abruptly switch. The two I had received previously must have been a similar manufacture lot number maybe with defects. No issues at all with the new bike and we’ve been enjoying it for weeks. Most glaring issue is that the brake does nothing at all, just a cosmetic lever on the handle. Returned one bike and the second had the same issue. The first one briefly worked after a wreck, but the throttle and brake levers had reversed, when they switched back the brake stopped working again. The replacement bike hasn’t had a working brake at all, seems like definite quality control and wiring issues. Definitely a safety hazard and won’t be going anywhere but some park and field areas with it to learn. That being said, the bike otherwise is amazing so I still give it three stars even without a brake. My son has been able to get up to the fast speed after 4-5 days of use and he’s 3.5years old. It’s developed balance really quickly and he’s getting confident on it, I’ll definitely have to switch him to something else before he’s 5 because he’s gonna want an upgrade. We’ve hD fun outdoors with it for over a week now. UPDATE: replacement bike also switches brake and throttle from time to time, and completely stops taking input and requires restarting frequently. Going to return this one as well and get money back for another product
...
show more
Reviewed in the United States on March 27, 2024 by Andrew Kurtz
Color: Black
We have had this bike since Christmas 2023. It gets ridden every day by a 3 year old and it is his absolute favorite. CS Review: Recently, it wouldn't turn on, so naturally we hit up customer service for recommendations to fix or replace. We received an almost immediate email back with our first steps to fix it, after the initial email, we receive one or two emails a day with new steps to fix. Some emails promised a new part, which must've been sent immediately because each part that we received was at our house within 2-3 days. This was the easiest customer service we have ever dealt with. They were on top of communication until the bike was fixed like new. BIKE Review: This bike is solid. It has the perfect levels of speed for a timid toddler or a crazy one like mine. Very easy to learn and will easily becoming your toddlers favorite toy. My three year old is very small for his age and this bike will fit him for a couple years minimum!
...
show more
Reviewed in the United States on June 25, 2024 by CW
Color: Black
Nice looking bike, runs fine and weight is manageable for a kid. My kids (3 and 5yo) can ride it fine but I’d say a bit small for a 5 yo though, and the right size for my 3yo but she has trouble pushing the throttle with her thumb (hand too small). Difficult to maneuver at “high” speed because of the small wheel and the shape of the handlebar (and small wheels). Generally-speaking, good value for the money compared to other brands. But if I had to buy a new one, I would not take that one because of the throttle and no real brakes.
...
show more
Reviewed in the United States on June 12, 2025 by HEiGi
Color: Black
We bought this for our 3 yr old daughter. It is a very good functioning bike. It was simple to assemble. The brake doesn't function that well, but she just uses her feet. The battery life is decent for a toddler who is always forgetting to shut it off lol. She has so much fun on it!
Reviewed in the United States on May 12, 2025 by Brooke