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RoyalBaby

RoyalBaby Astro Magnesium EZ-Shark Ultra-Light Kids Bike Lightweight Alloy Children Sport Bicycle 14/16/18 Inch Wheel for Boys Girls Ages 3+ Years

  • Based on 190 reviews
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Aug 6 – Aug 12
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Color: Rural Green


Style: 18 Inch With Kickstand


Pattern Name: Basic Magnesium


Features

  • Go Beyond the St?ndard. Our RoyalMg series aims to push the boundaries to the next level. The Magnesium alloy frame is a combination of the flexible shape of carbon fiber and a weight reduction of aluminum, along with our reputable original parts, that's how we define our flagship series. While having the same structural strength and durability compared to a steel bike, RoyalMg technology optimized the weight and shock absorption.
  • Stunningly Construction. Mg-Al alloy is the ultimate material for a high-end bike. The frame is built by integrated casting without solder joint any more. It ensures the long-term use of the bike as it is so easy to ride and highly adjustable. From a toddler to a teen, they can handle this bike easily. It will grow with your kids.
  • Premium Specs. Being a RoyalBaby flagship bike, the SPACE series has all the premium parts a little rider will ever want on his bike. A Lightweight Mg-Aluminium alloy frame, sealed bearing, dual dependable band brakes, wide tires, all in one incredible bike.
  • Effortless Assembly. Comes 95% professionally pre-assembled, with an elaborated instruction manual and complementary tools needed in the box.
  • Always Reliable. RoyalBaby bike complies with the CPSC standards, and is trusted by millions of families in more than 80 countries globally. Got any questions? Our customer service is 100% satisfaction guaranteed.

Bike Type: Kids Bike


Age Range (Description): 5 - 9 Years


Brand: RoyalBaby


Number of Speeds: 1


Color: Rural Green


Wheel Size: 18 Inches


Frame Material: Magnesium


Suspension Type: Rigid


Special Feature: 95% Pre-Assembled, RoyalBaby Exclusive Premium Parts, Lightweight, Dual band Brake, Freewheel


Included Components: Kickstand, Reflectors, Bicycle, Bell, Tool Kit


Bike Type: ‎Kids Bike


Age Range (Description): ‎5 - 9 Years


Brand: ‎RoyalBaby


Number of Speeds: ‎1


Color: ‎Rural Green


Wheel Size: ‎18 Inches


Frame Material: ‎Magnesium


Suspension Type: ‎Rigid


Special Feature: ‎95% Pre-Assembled, RoyalBaby Exclusive Premium Parts, Lightweight, Dual band Brake, Freewheel


Included Components: ‎Kickstand, Reflectors, Bicycle, Bell, Tool Kit


Size: ‎18 Inch


Brake Style: ‎Band


Specific Uses For Product: ‎Trail


Item Weight: ‎23 Pounds


Style: ‎18 Inch With Kickstand


Model Name: ‎RB18-35GH


Power Source: ‎Pedal power


Wheel Material: ‎Alloy Steel


Year: ‎2024


Seat Material Type: ‎Plastic


Warranty Type: ‎[POSSIBLE] Limited Warranty


Maximum Weight Recommendation: ‎150 Pounds


Assembly Required: ‎Yes


Number of Handles: ‎1


Global Trade Identification Number: ‎56


Minimum User Height: ‎46 Inches


Manufacturer: ‎RoyalBaby Cycle


Item Package Dimensions L x W x H: ‎50 x 26.6 x 7 inches


Package Weight: ‎12.77 Kilograms


Item Dimensions LxWxH: ‎50 x 21 x 35 inches


Brand Name: ‎RoyalBaby


Warranty Description: ‎Lifetime warranty for frame and fork. ‎Free replacement for easy-wearing parts within 6 months.


Material: ‎Magnesium Alloy


Part Number: ‎RB18-35GH


Date First Available: June 25, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 6 – Aug 12

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • It’s a gift for me as much for my son!
Color: Deep Azure Style: 16 Inch With Kickstand Pattern Name: EZ-Shark Ultra-light
Why did you pick this product vs others?: See below: Weight: So light, my 5yo loves this bike and it rides like a dream, he is so much more self reliant, and able to pedal up hill on his own. Ease of assembly: The pedals are amazing quick disconnect, all you have to assemble is slide the seat in place, pivot the front wheel, and snap on the pedals. So easy! Ease of riding: My son is so much more confident riding this bike, and I really appreciate it having both a front and rear brake, with a freewheel cassette on the rear wheel. Looks: In a word: amazing. I wish I could get one of these I. A 700c size for me to ride! My son literally goes into the garage EVER CHANCE HE GETS, to just sit on the bike. He is obsessed, and is so much more interested in riding all over the cul-de-sac and along our walking trail. ... show more
Reviewed in the United States on July 6, 2025 by Scott A. Bontrager
    • Well built kids bike.
Color: Red Style: 14 Inch With Kickstand Pattern Name: Basic Magnesium
Comes with everything you need. Good quality but a bit heavier than I expected. Our kiddo is loves riding around on it.
Reviewed in the United States on May 4, 2025 by abcd4321
    • Easy assembly
Color: Red Style: 18 Inch With Kickstand Pattern Name: Basic Magnesium
Easily assembled and easy to read instructions, my son loves his bike.
Reviewed in the United States on June 25, 2025 by Dwayne R Gibson
    • Very cost effective
Color: Red Style: 14 Inch With Kickstand Pattern Name: Basic Magnesium
This is good value for money. My 4yo went from a Strider to this for his birthday and was pedaling solo on his second day, no training wheels, but only completely flat or slight downhill and cannot start from a full stop. He's rode it a few more times and he can pedal now slightly uphill, and start from a complete stop if flat or downhill. So, pretty smooth progress. I was wary about the brakes but they work perfectly and he can use them with his small hands. Maybe the geometry of the frame could be better, because for him to be able to put his feet down, the saddle is so low that his knees need to go quite high, losing a pedaling power. And it could probably be a little lighter, or maybe not, I don't have anything to compare it to. But I do not regret the purchase because he's learned to ride pretty quickly and this is less than half the price of the specialty brands. He also likes riding it very much, and is very excited about learning to pedal, which is what matters the most. ... show more
Reviewed in the United States on June 13, 2025 by Pablo
    • Wonderful bike for kids!
Color: Red Style: 18 Inch With Kickstand Pattern Name: Basic Magnesium
Amazing bike! Both my 6 year old and 4 year old can ride this. And it’s easy to assemble!
Reviewed in the United States on March 23, 2025 by Andrew B.
    • I like it🥰
Color: Black Style: 18 Inch With Kickstand Pattern Name: Basic Magnesium
Review Image by Rashad Rashad
I like it👍
Reviewed in the United States on March 29, 2025 by Rashad Rashad
    • Grandson loves!
Color: Red Style: 18 Inch With Kickstand Pattern Name: Basic Magnesium
This bike works great and is perfect for our grandson!
Reviewed in the United States on February 15, 2025 by Sheila S.
    • Grandson like it
Color: Rural Green Style: 18 Inch With Kickstand Pattern Name: Basic Magnesium
No lights
Reviewed in the United States on January 17, 2025 by Works great

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