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.
20 Inch Large Bike
661Guardian 20 Inch Large Bike
Age: 6 - 9 years Height: 45 - 53 inches
$399
$319
Save 20%
SureStop Brake
System
Balance Bike Method Compatible
Kid Friendly
Gear Shifter
Training Wheels Compatible
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We Make It Easy on the Parents Too
Flat Rate Shipping
Shipping is $29 flat, and in-stock orders leave our warehouse within 3-4 business days.
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.
Customer Reviews
4.9 Based on 661 Reviews
Customer Photos
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M
08/29/2023
Madhu
United StatesSize does not fit
Sizing is an issue, we tried the 20 inch and the 20 inch large bike and both of them are small to my niece. Couldn't afford to spend another $300 on the next size. These bikes runs small to the bikes on the market
08/30/2023
Guardian Bikes
Hi Madhu! I'm sorry to hear the bikes were not a good fit. It looks like our Ridesizer recommended the 20" large initially. I know it may seem like we were recommending a very large bike for your child, but keep in mind that all bikes have a different geometry. If you were to try a bike at Walmart or Target, or even at a bike store, that shared the same wheel size as our bikes, it will not fit the same. Guardian Bikes are specifically designed with an extended wheelbase & lower center of gravity to make balancing easier for kiddos. They also have smaller frames & use specific hand levers that are smaller (perfect for little hands!) and easier to pull than typical brake levers. We so appreciate you giving our bikes a try and would love to help with getting your niece the perfect bike. Feel free to reach out for more help! Best, Laura @Guardian Bikes
ME
10/28/2021
Matt E.
United StatesTire Will Not Hold Air
After receiving the bike, we aired up the tires only to see the rear tire not hold air. There doesn’t appear to be a hole in the tire and seems to be an issue with the tire getting a seal on the rim. I’m hoping Guardian will take some ownership and accountability for this and do the right thing by making it right.
10/28/2021
Guardian Bikes
Hi Matt, Thank you for giving us a call. I am glad we were able to get the tire fixed. We are thrilled to hear your daughter loves the bike. Please reach out again if there is anything we can do for you. :) Sam @ Guardian Bikes
ES
10/26/2020
Eugene S.
United StatesHandlebars far too low & don’t adjust.
Brake system is a great idea. However, handlebars are designed WAY too low for the bicycle frame, and cannot be adjusted up. Poor design.
10/26/2020
Guardian Bikes
Hi Eugene, Adam here at Guardian Bikes. Sorry the fit is not perfect. You can raise the handlebars a couple of inches with the stem adjustment if you haven't already done so. Also we have a higher rise handlebar available if you need the bike to be taller after the stem adjustment. I will send you a separate email with video on how to raise the bars also. Thanks, Adam @ Guardianbikes.com
SM
09/25/2017
Shanmuga M.
United States
Unable to raise handle position.
The braking system is excellent. But unforunately we are not able to raise the handle bar. The distance between the seat & handle bar is not suitable for a girl whose height is 4feet 1inches. The distance is too huge, my daughter does not look comfortable in the bike. I may not purchase another one for my son even though i like the brakes. Thanks
08/26/2020
Guardian Bikes
Hi Shanmuga, I am sorry to hear about the handlebar. Can you please send us a message or give us a call? We carry a raised handlebar that we would love to send your way. Cheers, Sam
