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
809 reviewsGuardian 20 Inch Large Bike
![](http://guardianbikes.com/cdn/shop/files/5-stars-50-tall_150x.png?v=8419243448179585904)
4.9 (Based on 809 Reviews)
4.9
![Guardian 5 star](http://guardianbikes.com/cdn/shop/files/5-stars-50-tall_150x.png?v=8419243448179585904)
Based on 797 Reviews
Age: 6 - 9 years Height: 45 - 53 inches
$399
$319
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SureStop Brake
System
Balance Bike Method Compatible
![](http://guardianbikes.com/cdn/shop/files/Shifter-Icon-Cropped.png?v=5400372225759186082)
Kid Friendly
Gear Shifter
Training Wheels Compatible
Why Kids LOVE Guardian Bikes
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.
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.
Learn More
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.
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.
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.
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.
We Make It Easy on the Parents Too
Flat Rate Shipping
Shipping is $29 flat, 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.
![20 Inch Large Bike - Customer Photo From Amanda Z](https://cdn.stamped.io/uploads/videos/0b42b8f9d78c5be8796e54174e49fa60.jpg)
![20 Inch Large Bike - Customer Photo From Jess](https://cdn.stamped.io/uploads/videos/de1f9a19c89cd19be1ef759b758a7dc8.jpg)
![20 Inch Large Ethos Bike - Customer Photo From Abby Moe](https://cdn.stamped.io/uploads/videos/99fed47a40476dabda96d97cda7c5656.jpg)
![20 Inch Large Original Bike - Customer Photo From Harley Sheffield](https://cdn.stamped.io/uploads/videos/075d62c73cfd5c02f365a8fa9534ee7d.jpg)
![20 Inch Large Original Bike - Customer Photo From Patrick Justison](https://cdn.stamped.io/uploads/videos/7662b174766c96468f451190d98aa11a.jpg)
![20 Inch Large Ethos Bike - Customer Photo From Derek or Jen Rochester](https://cdn.stamped.io/uploads/videos/69c5e565417f8bf60c440d8e1abdcbdc.jpg)
![20 Inch Large Ethos Bike - Customer Photo From Karen Delgado](https://cdn.stamped.io/uploads/videos/6b6eca3b56543260c9820d371a3c0228.jpg)
![20 Inch Large Ethos Bike - Customer Photo From Caitlin Kriner](https://cdn.stamped.io/uploads/videos/40f53dd37963c6210dbe193bfc8fe6a4.jpg)
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Poor quality control
Both brakes rub against the wheels. I tried the easy fixes from support and those have not worked. I should not have to spend hours of my time fixing an expensive, brand new bike. Very disappointed in the quality control.
Guardian Bikes
Hi Josh! It looks like our team got you taken care of here with the brakes. I'm glad it worked out taking your bike to a shop for assistance. We can cover repairs an bike shop fixes for the first year you have your bike and we offer lifetime support! Let me know if you need any more help. Laura @Guardian Bikes
2attempt
I am trying my best to fix the brakes on my grandson's 20” bike. In my 75 years I have never encountered anything as upside down in design. The child brakes which pulls a cable to the rear tire, which in turn somehow pushes(?) pulls(?) another cable to activate the front brake. There are no available documents to guide in the assembly or correction of the assembly. The company did furnish my children with a broken piece; but even after the youtube video, it is not operational. There is something amiss with the back brake that does not activate the front when applied. I have decided to purchase another bike for my grandson and it will not be a web purchase or one without full documentation. I was fixing my own bikes at the age of 7 and it was easy and straight forward. Good luck! Remember, it is your loved one that is riding what you put under them.
Guardian Bikes
Hi George, Thank you for the feedback. We have easy to follow videos on our website. We also have a QR code on the bike box that pulls up the assembly directions with your phone. Our customer support team also provides technical support. We can video chat and help you or you can send photos to info@guardianbikes.com for assistance. We are open 7 days a week between 9-5 Central. Please reach out and I am happy to help with assembly. Have a great day! Best, Sam
Bike isn’t functional The breaks are interfering with the wheels
Guardian Bikes
Hi Christina, Oh no! I'm so sorry to hear of the issue with the brakes! We can definitely help with a fix. First, would you mind sending over a photo of the front of the bike? -Laura @Guardian Bikes
Chain Comes off
Chain comes off daily
Guardian Bikes
Hi Neil, We're so sorry for the trouble! My teammate Adam followed up with you via email, and we'll definitely get this fixed. Thanks, Kaitlin @ Guardian
Late and Grips
The delivery was late and the hand grips on the gear switch handle slide off.
Guardian Bikes
Hi, Thank you for the feedback. Apologies, shipping with fedex was delayed. We will follow up with fedex. We want all of our bikes to arrive within 1-5 days. A cool trick to get loose grips to stay on is to spray the inside of the grip with hairspray. This will prevent the grips from sliding off. It's a trick bike shops commonly use. Best, Sam