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20 Inch Small Bike

330 reviews
With Free shipping

So much to love in one bike

SureStop, Easy Reach Brakes

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.

Ultra-lightweight Design

The Guardian AIROS is made of ultra-lightweight, aircraft-grade aluminum. It’s exceptionally durable and extremely easy to control, making it both super safe and fun to ride.

Eye Candy Decals

Our bike colors and designs were developed by kids, for kids, to make our bikes the coolest bikes on the block. Our Guardian AIROS use a matte black frame with glossy heat-transfer decals, for a popping contrast that will blow your kid’s mind.

Kid-specific Geometry

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

The low top tube makes our bikes easy to get on, and a lot safer if your kid comes off their seat in a hurry.

Adjustable Seat

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.

No Coaster Brake

Guardian bikes never have coaster brakes. Period. New riders backpedal to keep their balance. If a bike has coaster brakes, this stops the bike, just when they were getting the hang of it. Our brakes stop faster, with much more control.

So much to love in one bike

SureStop, Easy Reach Brakes

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.

Lightweight Design

The Guardian Ethos 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.

Eye Candy Decals

Our bike colors and designs were developed by kids, for kids, to make our bikes the coolest bikes on the block. Our Guardian ETHOS line uses water-transfer decals with a clear coat finish, giving the whole bike a polished shine.

Kid-specific Geometry

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

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

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.

No Coaster Brake

Guardian bikes never have coaster brakes. Period. New riders backpedal to keep their balance. If a bike has coaster brakes, this stops the bike, just when they were getting the hang of it. Our brakes stop faster, with much more control.

So much to love in one bike

SureStop, Easy Reach Brakes

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.

Ultra-Lightweight Design

The Guardian Original is made of ultra-lightweight, aircraft-grade aluminum. It’s exceptionally durable and extremely easy to control, making it both super safe and fun to ride.

Eye Candy Decals

Our bike colors and designs were developed by kids, for kids, to make our bikes the coolest bikes on the block. Our Guardian AIROS line uses water-transfer decals with a clear coat finish, giving the whole bike a polished shine.

Kid-specific Geometry

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

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

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.

No Coaster Brake

Guardian bikes never have coaster brakes. Period. New riders backpedal to keep their balance. If a bike has coaster brakes, this stops the bike, just when they were getting the hang of it. Our brakes stop faster, with much more control.

So much to love in one bike

SureStop, Easy Reach Brakes

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.

Lightweight Design

The Guardian Ethos 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.

Eye Candy Decals

Our bike colors and designs were developed by kids, for kids, to make our bikes the coolest bikes on the block. Our Guardian ETHOS line uses water-transfer decals with a clear coat finish, giving the whole bike a polished shine.

Kid-specific Geometry

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

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

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.

No Coaster Brake

Guardian bikes never have coaster brakes. Period. New riders backpedal to keep their balance. If a bike has coaster brakes, this stops the bike, just when they were getting the hang of it. Our brakes stop faster, with much more control.

Fully Tuned Delivery

At Guardian Bikes, we assemble most of your bike before we ship it, putting it through a rigorous 34-point safety check before it goes out the door. The only things left to add take about 5 minutes, and we’ll send the only tools you need right in the box.

Watch Assembly Preview

Fully Tuned Delivery

At Guardian Bikes, we assemble most of your bike before we ship it, putting it through a rigorous 34-point safety check before it goes out the door. The only things left to add take about 5 minutes, and we’ll send the only tools you need right in the box.

Watch Assembly Preview
Customer Reviews
4.9 Based on 330 Reviews
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A Guardian Bikes Customer
GM
03/17/2021
Gil M.
United States United States
Excellent Customer Service

Guardian Bikes went above and beyond to help me when I ordered a bike that was too small for my daughter. The bike was a Christmas present so it was disappointing to learn that the next size up was on backorder. To the point, I did not want to tell my daughter that she would have to wait another 4 months for the new bike to arrive. When I told Guardian my dilemma, they told me to use the current bike until the new one comes in. I can't say enough about their customer service and I definitely recommend their bikes.

03/17/2021
Guardian Bikes

Hi Gil, Thank you for your kind words! Most importantly - we are so happy that your daughter got the bike that fits her best :) -Aly @Guardian Bikes

AC
03/16/2021
Amanda C.
United States United States
We love our bike

I wanted to get a quality bike for my 4. 1/2 yo that was easy to put together easy for her to ride, and reasonably priced. Guardian is all of those things. She is also so proud that she can ride a bigger bike than most of her peers. We would definitely recommend Guardian!

03/17/2021
Guardian Bikes

Hi Amanada, We're so happy that the assembly was a breeze! Tell her we are proud of her as well! -Aly @Guardian

TO
03/16/2021
Tricia O.
United States United States
Worth the extra expense

Having bought many big store bikes over the years, I got tired of shoddy craftsmanship and safety concerns. While the expense for a 5 year olds bike she will outgrow is sizable, this is NOT like the usual kid’s bike. She controls it better. Shows more confidence. And as a trained surgeon who has cared for and lost pediatric patients to trauma from bicycle, scooter, skateboard accidents, I have far more confidence in her safety due to the design allowing her to be a better operator. American made is the cherry on top.

03/17/2021
Guardian Bikes

Hi Tricia, Thank you so much for your kind words! We are so happy to hear your kiddo is doing great on the bike and our safety features get the doc's approval :) -Aly @Guardian

RF
03/16/2021
Richard F.
United States United States
Terrific Bike/Great Helmet/Terrific Company

Simply put Guardian is the absolute best company to deal with in the U.S. Great products and wonderful customer service. Dr. F

03/17/2021
Guardian Bikes

Hi Dr. F, Thank you so much for your kind words! We're so happy you choose Guardian for your family :) -Aly @Guardian

RA
03/16/2021
Rong A.
United States United States
Great great bike!

We are very impressed by both the design and the quality of this bike. Light, sturdy, super easy to put together, safe for the little one. The color is gorgeous. My daughter has been out with her bike so many times and we never had any problems. The ordering and delivery processes work like a breeze too. Strongly recommend it to anyone looking for a kids' bike.

03/17/2021
Guardian Bikes

Hi Rong, Thanks for recommending us! We are so happy to hear your daughter is loving the bike! -Aly @Guardian

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