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20 Inch Small Bike

783 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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Fast and Free Shipping

Shipping is free, 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 783 Reviews
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Jordan W.
United States United States

No tools or pedals shipped

No tools or pedals were shipped. No plastic was covering any part of the bike. Seems used. Absolute disgrace.


Guardian Bikes

Hi, Thank you for reaching out. We were able to get the pedals and tools overnighted to you. We are currently assembling around 1,000 bikes a day at our Seymour Indiana factory. Please reach out with any questions at We are happy to help. Have a wonderful day. Best, Sam

Shelley S.
United States United States

Not liking bike

My child is not liking the bike. The seat is raised high enough to have just his toes touching the ground but when trying to pedal his knees are up to his chest.


Guardian Bikes

Hi Shelley, We are sorry your son isn't enjoying his bike. Send us a photo of him on it and we can work on getting you the proper size.

Jason a.
United States United States

Fit wasn't right

It was close.. he can sort of ride it.. but just barely tall enough. I wish I had purchased the next size down - I double checked the order measurements I entered, but the recommended size will probably fit him next summer.


Guardian Bikes

Hi, Thank you for the feedback. Please email us the measurements you used to determine the size. We can double-check and help out. We are here 7 days a week from 9-5 central. You can reach us at I would recommend removing the seat reflector. This is cool trick that helps the seat go a little more down. :) Best, Sam

With Free shipping

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