SKU: 52109249427

HKM-857939 800W Electric Balance Bike for Kids 8-18 Years, 20 Inch, Max Speed 45km/h, Adjustable Hydraulic Suspension, Aluminum Alloy Frame

$540.00 $600.00
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

HKM-857939 800W Electric Balance Bike for Kids 8-18 Years, 20 Inch, Max Speed 45km/h, Adjustable Hydraulic Suspension, Aluminum Alloy FrameIntroducing the HKM 857939 800W Electric Balance Bike, designed for kids aged 8 to 18 years. With a robust 20 inch aluminum alloy frame, this bike stands out for its impressive max speed of 45 km h, making it perfect for adventurous young riders looking to conquer the outdoors. Safety and comfort are paramount with features like adjustable hydraulic suspension that ensures a smooth ride over various terrains. The bike is equipped with a durable

Introducing the HKM-857939 800W Electric Balance Bike, designed for kids aged 8 to 18 years. With a robust 20-inch aluminum alloy frame, this bike stands out for its impressive max speed of 45 km/h, making it perfect for adventurous young riders looking to conquer the outdoors.

Safety and comfort are paramount with features like adjustable hydraulic suspension that ensures a smooth ride over various terrains. The bike is equipped with a durable hydraulic disc braking system for reliable stopping power, giving parents peace of mind while their young riders enjoy the thrill of the ride.

The HKM-857939 is designed with versatility in mind. It features three speed settings—15 km/h, 30 km/h, and the exhilarating top speed of 45 km/h—allowing riders to adapt to their environment and skill level. The full shockingproof frame provides added stability and resilience, essential for outdoor adventures and racing.

Weighing in at 22 kg and with a load capacity of 70 kg, the bike accommodates a range of riders, while the adjustable seat height of 58 to 68 cm ensures a comfortable fit as your child grows. The bike's sleek design and color options in black, white, and orange make it visually appealing, while the 800W brushless hub motor provides the necessary power to tackle challenging terrains.

Ideal for both road and mountain biking, this electric balance bike is a fantastic choice for kids eager to explore, race, or simply enjoy the great outdoors. Whether on a relaxing family outing or a thrilling adventure with friends, the HKM-857939 promises fun and excitement.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 52109249427

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4.3 ★★★★★
Based on 27 reviews
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Product Reviews
M
Verified Purchase
Milena Reale
Alexandria, US
★★★★★ 5
Durable, Engaging, and Perfect for Small Dogs
Size: Small
The Starmark Everlasting Treat Bento Ball is fantastic! My small dog loves it, and it keeps them entertained for a long time. The toy is tough and durable, perfect for chewing, and the treat-dispensing feature makes playtime even more engaging. A great way to keep dogs mentally and physically stimulated.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
J
Verified Purchase
Jasmine
Birmingham, US
★★★★★ 4
Great toy, just no match for my dog
Size: Large
I love this toy but it was unfortunately no match for my 75lb catahoula leopard dog, it took her about an hour tops to rip the treat out of the ball entirely and walk off with it to eat it 🤣 the side I put a bunch of her smaller treats into kept her busy longer. I'll definitely keep using it, she absolutely loves it, but shes just too good at tearing things up 😅 To be fair, shes a really heavy chewer, and usually gets frozen marrow bones as treats. This is a great alternative, especially for the price, its nice and heavy, she hasnt chewed through the rubber yet, but it probably wont be long. She doesn't throw it around like she does her other balls, but when I toss it to her its got a good bounce.
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Reviewed in the United States on November 23, 2025
R
Verified Purchase
Roni
Charlottesville, US
★★★★★ 5
KEEPS MY ENERGETIC 1 YR OLD LAB BUSY
Size: Large
Anyone that has a field Lab knows you have to keep them busy which is difficult with the snow that won’t melt and the unusual -15 degree windchills we are having in NYC. Like others I’ve wasted so much money on various toys and puzzles trying to keep her busy and mentally stimulated. She either destroys them in minutes or won’t touch them. However, these with treats inside are fantastic. She loves the chicken flavor treats that go inside the ball. The treats for the holder are pricey but worth it so it keeps her busy for a while and she doesn’t get super hyper with cabin fever. Once I can get her back outside for longer periods to play and run off her excess energy I probably won’t be buying them on a regular basis given the price and that they only last a couple of hours given her strong jaws….Probably only for a special treat. However, for now they are worth every penny. The only con is they are difficult to get into the holder which is good so she can’t remove it.
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Reviewed in the United States on February 6, 2026
D
Verified Purchase
Destiny
Grantham, US
★★★★★ 5
We love em!
Size: Medium, Size: Medium
My dog loves these! I get a size smaller so it’s harder for him to eat. He’s 70lbs I get him the medium and it will last him 4 ish days. I also fuill the back with dog safe peanut butter, broken treats, and his food. This keeps him happy while I’m at work :) for reference he’s a gsd, and Australian shepherd mix. He never lets it get too far away, and proudly carries it along even when empty. He had one for over a year that just now started to break. They are very strong, great for chewers, and worth their weight in gold! When empty they also make them have the funniest faces🤣 again my dog had the first one for over a year before it started to rip. They are hardy.
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Reviewed in the United States on January 21, 2026
M
Verified Purchase
Mats
Boise, US
★★★★★ 1
Wrong item sent
Size: Small, Size: Small
The bento ball itself is great but the extra 16 treats that were sent as part of the purchase were the wrong kind. The picture used in the Amazon ad is the one shown in the left part of the picture I posted (dome shaped treats with a dog named Lacey in the picture), and what I received is shown in the right part of the picture (ridged treats with a dog named Bella in the picture). The problem with the Bella treats is that they are a bit smaller than the Lacey treats which means that they dont fit sugly into the bento ball. This in turn means that my little maltipoo gets them out of the bento ball in a few minutes. This defeats the whol purpose of the treat, and even worse this is a choking hazard for small dogs which makes the product unusable for me. FYI - I have never had this problem with the Lacey treats - they work great which is why I bought this product since this is what was shown in the picture. I sent a message to the vendor about this but have not heard anything back. Amazon offered to refund me half of the total purchase price if I sent back both the ball and the 7 of the 8 treat packages (I opened one only to discover this problem), which is also not great.
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Reviewed in the United States on January 26, 2025

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