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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 180 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Jun 12
Order within 19 hours and 38 minutes
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Color: Red


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: Red


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: ‎Red


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: ‎RB18-35RH


Power Source: ‎Pedal power


Wheel Material: ‎Alloy Steel


Year: ‎2024


Warranty Type: ‎Limited


Maximum Weight Recommendation: ‎150 Pounds


Assembly Required: ‎Yes


Bicycle Gear Shifter Type: ‎Twist Grip


Number of Handles: ‎1


Minimum User Height: ‎46 Inches


Bicycle Drivetrain Type: ‎Single Speed


Manufacturer: ‎RoyalBaby Cycle


Item Package Dimensions L x W x H: ‎49 x 26 x 7.5 inches


Package Weight: ‎12.84 Kilograms


Item Dimensions LxWxH: ‎51 x 22 x 36 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: ‎RB18-35RH


Date First Available: June 25, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 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.

Top Amazon Reviews


  • 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

  • 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.

  • Rides Great! Not Lightweight.
Color: Red Style: 16 Inch With Kickstand Pattern Name: Basic Magnesium
Rides Great! Not Lightweight. The geometry is really nice for a 16" which makes it ride very well, but it's definitely no lighter than most bikes you'd find at Walmart. It may be cast from magnesium, but most of the frame is actually solid, not tubular, so it's much heavier than it looks. All that being said, this is my 4yo son's first pedal bike and he was able to hop on and immediately take off riding! (we started on a 12" strider). He's 43" tall and It's a hair on the big side for him, but it is really stable, has great geometry and really does work very well. Do note that on top of some assembly, the brakes actually needed quite some adjustment out of the box, so much so that they wouldn't have actually stopped the bike when pulled. Adjusting the cable resulted in a much firmer brake feel. Also note that this style of brake doesn't fully lock up, so they're great for learning how to operate lever brakes without being too "tricky". That said, older kids (dad) may not be able to stop easily down large hills. ... show more
Reviewed in the United States on April 19, 2025 by DangYankee

  • I like it🥰
Color: Black Style: 18 Inch With Kickstand Pattern Name: Basic Magnesium
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

  • Great quality
Color: Rural Green Style: 14 Inch With Kickstand Pattern Name: Basic Magnesium
My 4 year old loves it!
Reviewed in the United States on November 19, 2024 by amanda

  • Basic bicycle for every kid!
Color: Deep Azure Style: 16 Inch With Kickstand Pattern Name: EZ-Shark Ultra-light
This bicycle is perfect for kids to learn how to ride a bike. It's basic to the core, pedals, handle bars and single chain speed control with hand brake. The bicycle seat is adjustable so the bike can grow with your kids. I really like how sturdy the bike look and the build quality is solid. When you get the bike, it's disassembled into smaller pieces but it was easy to put it back together. Overall, if you're looking for a first bike for your child, this is the prefect one to get for them, especially at this price it's a no brainer! ... show more
Reviewed in the United States on June 4, 2025 by Dtim

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