The Guardian 20 Inch Large Bike has a lightweight steel frame, making it easy to control while still durable enough to outlast your kid. Like every Guardian bike, it’s kid-tested to be safe and fun to ride.
20 Inch Large Bike
Guardian 20 Inch Large Bike
4.9 (Based on 898 Reviews)
Age: 6 - 9 years Height: 45 - 53 inches
Compare at price:
$399
Product price:
$319
Save 20%
SureStop® Brake System
Balance Bike Method Compatible
Kid Friendly Gear Shifter
Training Wheels Compatible
Why Kids LOVE Guardian Bikes
Lightweight Design Learn more about
SureStop, Easy Reach Brakes Learn more about
With SureStop, there’s only one brake lever, so your kid can’t get confused when things happen fast. Our patented brakes won’t ever flip the bike, and the lever is in just the right place for kid-size hands.
Kid Friendly Gear Shifter Learn more about
Our unique gear shifter is designed to make shifting easy with a simple twist function and a red visualizer that changes its position depending on which gear your child is in.
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Kid-specific Geometry Learn more about
Kids don’t just need smaller bikes. They need different bikes. With all the right proportions. They need smaller grips. They need less distance between the pedals. They need shorter crank arms and a low center of gravity. All Guardian bikes are designed for kids, from the ground up.
Low Step-over Height Learn more about
The low cross bar makes our bikes easy to get on, and a lot safer if your kid comes off their seat in a hurry.
Adjustable Seat Learn more about
Every Guardian bike seat is both easily adjustable and easy to lock down. You can adjust the height to fit your kid as they grow up with the bike.
Eye Candy Decals Learn more about
Our bike colors and designs were developed by kids, for kids, to make our bikes the coolest bikes on the block. Our Guardian 20 Inch Large Bike line uses water-transfer decals with a clear coat finish, giving the whole bike a polished shine.
Double-walled Rims Learn more about
Our double-walled rims can stand up to the extreme beating of a kids’ bike without bends, dents, or buckles. Even under the weight of a grown man. We tested it. A bunch of times.
We Make It Easy on the Parents Too
Fast and Free Shipping
Shipping is free, and in-stock orders leave our warehouse within 1 business day.
365 Smooth Ride Guarantee
We want to make sure the bike is perfect for your family, so we give you a FULL YEAR to test it out.
Quick and Easy Setup
Get the bike from box to pavement in 5 minutes. So easy a busy parent can do it with ease.
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- Questions
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Wonderful bike
My 6 year old loves the bike, the 20 inch large needs a handle bar that goes up higher though
Guardian Bikes
Hi Megan- Some of our bikes do have the ability to increase the handlebar higher. Please reach out to us at info@guardianbikes.com and we would be happy to help. The Guardian Bike Team
I love my bike !
I learned to ride on 2 wheels in 40 minutes ! Easy to carry ! It gives me a lot of confidence !
Guardian Bikes
Hi Dublynn- So glad that you are enjoying your Guardian Bike! Guardian Bikes Team
Great bike
The shipping was super fast! We received the bike within 2 days. Assembly was quick and easy. The only problem is the bike is to small. I did the measurements but unfortunately it's to small for my son.
Guardian Bikes
Hi Sarah, While we're sorry to hear the bike didn't fit properly, we can definitely help out with getting another size! We allow returns within one year of the delivery date of your bike. To get started, how tall is your child? We want to be sure the second bike is a perfect fit! Along with your child's height, can you also share their leg length measurement? How to measure 1. Have your child stand tall, with their feet shoulder width apart (shoes on) 2. Place any size book up between your child's legs as high as it can go (we want to measure to the point where they will be sitting on the seat; this is different than measuring pant inseam) 3. Measure from the ground to the top of the book to get their inseam measurement. Thanks! We look forward to hearing back. Best, Laura @Guardian Bikes
My kid is loving riding their bike!
Sturdy bike. Easy shipping. Easy assembly. I like all the geometric science you all use (or at least market;))
Guardian Bikes
Hi Jackson, Thank you so much for your review! We're happy to know that your kid loves riding their new Guardian Bike. If you have any questions or concerns, our team of kids bike experts are here to help. -Laura @Guardian Bikes
Broken :/
The process of putting together the bike was great with the videos until I went to attach the handlebars. I unscrewed the bolt to be able to insert the handlebars and now it will not tighten. Not sure if something is broken but this has significantly delayed us using the bike. I have sat there trying to figure this out for way too long and now the bike is sitting waiting to be put together in the garage.
Guardian Bikes
Hi there, We're so sorry you're having issues with your Guardian! Feel free to send us an email at info@guardianbikes.com and we can help get this resolved for you, if needed! Best, Guardian Bikes Team