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20 Inch Large Bike

661 reviews
With Free shipping

Guardian 20 Inch Large Bike

Age: 6 - 9 years   Height: 45 - 53 inches



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Why Kids LOVE Guardian Bikes

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

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.

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

Feature icon, Green Checkmark Kid Friendly Gear Shifter 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

Feature icon, Green Checkmark Double-walled Rims 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 3-4 business days.

100 Day Test Ride Icon

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 661 Reviews
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Customer Photos
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Filter Reviews:
Christina K.
United States United States

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

Sarah M.
United States United States

Delivery disaster & missing bolt

The experience was really poor. The delivery driver backed into our fence and broke several parts. They drove away but my neighbors witnessed it. The other issue was a missing bolt on the bike tire. We had to go to 3 different hardware stores / bike shops to try and find one that was the same so we didn't have to order it all over again and wait

Neil B.
United States United States

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

Kevan K.
United States United States

Late and Grips

The delivery was late and the hand grips on the gear switch handle slide off.

David W.
United States United States

Horrible service

Horrible service. Bought the bike for a birthday present and waited months to receive my order. Each company email update was nothing more than a strategic delay excuse.


Guardian Bikes

Hi there David, Thank you for taking the time to write a review. We're incredibly sorry to hear you weren't happy with our service. As a company, we're taking your feedback to heart, and we promise to continue improving our communication and transparency. Thanks again, and please let us know if you need anything at all. Best, Kaitlin @ Guardian Bikes

With Free shipping

365-Day Returns

Put our bikes to the test for a FULL YEAR

Return your bike at any time within the first year for any reason, we even cover shipping.

We Cover:

  • Free Returns & Exchanges

  • Local Mechanic Repairs

  • Spare Part Replacement

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 Available!

Limited inventory! To ensure your gifts arrive by Christmas look for our distinctive Guaranteed Holiday Delivery Sticker.

To confirm, check the estimated ship times below the Add to Cart button on each product page. Bikes ordered before December 18th AND have our Guarantee Holiday Delivery Sticker WILL arrive before Christmas.

Questions or need help? Our Customer Experience (CX) team is ready to assist you via chat or email.

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

  • 6-speed twist shifter

  • Red visualizer to help with gear selection

  • Fun and easy way to learn