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20 Inch Small Bike

814 reviews
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Guardian 20 Inch Small Bike

Age: 5 - 8 yearsHeight: 43 - 51 inches



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Why Kids LOVE Guardian Bikes

Feature icon, Green Checkmark Lightweight Design Created with Lunacy Created with Lunacy

The Guardian 20 Inch Small 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.

Feature icon, Green Checkmark SureStop, Easy Reach Brakes Created with Lunacy Created with Lunacy

Feature icon, Green Checkmark No Coaster Brake Created with Lunacy Created with Lunacy

Feature icon, Green Checkmark Kid-specific Geometry Created with Lunacy Created with Lunacy

Feature icon, Green Checkmark Low Step-over Height Created with Lunacy Created with Lunacy

Feature icon, Green Checkmark Adjustable Seat Created with Lunacy Created with Lunacy

Feature icon, Green Checkmark Eye Candy Decals Created with Lunacy Created with Lunacy

We Make It Easy on the Parents Too

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Flat Rate Shipping

Shipping is $29 flat, and in-stock orders leave our warehouse within 1 business day.

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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.

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Quick and Easy Setup

Get the bike from box to pavement in 5 minutes. So easy a busy parent can do it with ease.

Customer Reviews
4.9 Based on 814 Reviews
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Karen L.
United States United States

The best

Love this bike, after two years of training wheels on another bike, it only took two hours to learn to ride on the guardian. Very well made and shipped fast. Definitely would recommend it!

Francis M.
United States United States

grandsons bike

great bike was everything as advertised and sizing information was very helpful. Video assembly instructions were really good and shipping happened as it should. Great job keep up the good work franm

United States United States

Perfect Bike!

I purchased the bike for my son’s 6th birthday. He was excellent at riding on his Strider but had never mastered pedaling. My parents got him a 16” bike but he was really struggling to pedal it uphill and it seemed to small. After doing the questionnaire, I was recommended getting the small frame 20”. It is perfect! Out of the box and 5 long minutes of assembly, he was off and riding like he’d been doing it for years. He had no trouble pedaling as soon as he sat down on it. He was even riding it up the hills on our long road with no complaints. We absolutely love his bike and I will be buying Guardians for him again as he outgrows them.

Guardian Bikes 20 Inch Small Bike ReviewGuardian Bikes 20 Inch Small Bike Review
United States United States

Great purchase

I saw this bike advertised online and noted it was advertised as a well balanced bike that will help with learning to ride. I was skeptical when I bought it but my 5 year old has adapted well to the new bike and after 2 hours of practice is ready to ride on her own AND she loves the color scheme and bell. Was an all around win!!

United States United States

20" Small was too small for my 44" son.

The bike is advertised as being the correct size for a 44" child but its way too big for my son who is 44" He will grow into in eventually but its a little frustrating to spend $300 on a bike he cant use. Customer support offered to let me donate it and get a refund but not even a $10 coupon as an apology to buy a 16" bike. Many other reviewers say the same thing about their kid being on the lower end of the height scale for the 20" bike but yet they still continue to advertise it as being the correct height.

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Training Wheels Compatible

We recommend using the balance bike method when teaching your child to ride a bike, but understand all children learn differently.

Compatible training wheels can be purchased here for our 14", 16", and 20" Bikes.

🎁 Important!

Guaranteed Holiday Delivery ended at 6:30pm EST, on Friday, December 15th for all in stock bikes.

For all current in stock bikes, you will see a “May Arrive Before Christmas Badge”. This badge indicates we have inventory ready to ship out.

Please see transit times below. Note that these are estimated business days, and delays can be expected this time of year. We do not offer expedited shipping at this time.

Thank you, and happy holidays!

Bike being assembled

Assembly Steps

Step 1: Attach Handlebars

Step 2: Attach Pedals

Patented SureStop® Brake System

  • Easier to use – single lever braking

  • Safer to stop – prevents head over handlebar accidents

  • More control – stops faster by balancing front/rear braking automatically

Kid Friendly Gear Shifter

  • 7-speed twist shifter

  • Red visualizer to help with gear selection

  • Fun and easy way to learn