Trails.com - Your Guide to the Outdoors
Your guide to the outdoors.
Search for:
  • Trails
  • Photos
  • Members
  • Gear

Bicycle Sizes for Kids

Email Share
By Kathrine Cole
Bicycle Sizes for Kids
Bike riding is a great activity to encourage your kids to get outside. To make sure your child has a good experience, it's important that she is outfitted with the appropriate gear, including a properly fitted bike. Don't be tempted to buy a bike that's too big so your child will have time to grow into it. A bike that is too big can be hard to ride and even dangerous.

How Kid's Bikes are Sized

Unlike adult bikes that are sized by the measurement of the frame, kids bikes are most often sized by their tires.

12-Inch Bikes

The smallest of the kids line-up, 12-inch bikes fits most kids ages 2 to 4 or with an inseam of 14 to 17 inches.

16-Inch Bikes

16-inch bikes fit kids ages 5-8, or with an inseam of 18-22 inches.

20-Inch Bike

This size with fit most kids ages 7-10, or with an inseam of 22-25 inches.

24-Inch Bike

Just a size below a standard adult bike, 24-inch bikes will fit kids with an inseam between 24 and 28 inches.

Adult Sizes

Once your child hits the 5-foot mark, she may be able to buy an adult frame. Make sure she is able to stand over the top tube of the bike with at least an inch of clearance so she can come off her bike safely.

About The Author

Kathrine Cole is a professional outdoor educator. She teaches rock climbing, backpacking, cycling, and bike maintenance classes. She is a graduate of the National Outdoor Leadership School, a Wilderness First Responder, and a Leave No Trace Trainer.
Write for Trails.com

  • Editor's Pick

    3 Main Types of Altitude Sickness

    3 Main Types of Altitude Sickness

    Some of the world's most noted tourist attractions, such as the Inca ruins of Machu Picchu, require visitors to ascend to high altitudes. Mountaineers, skiers and trekkers venture into ever higher locations in search of fresh adventure or untrampled destinations. The com...

    More Mountain Climbing...
  • Popular Article

    How to Repair Trekking Poles

    How to Repair Trekking Poles

    Trekking poles can do wonders for relieving the stress of hiking on the back, knees and feet, particularly if you are carrying a backpack. Poles are suggested to be able to reduce up to 25 pounds of carried weight pressing down on your joints by transferring the load to ...

    More Walking & Nature Walks...
  • Featured Video

    Choosing Ski Types & Sizes

    Choosing Ski Types & Sizes

    Learn how to find the right style and size of ski in this free beginner skiing lesson on video, with tips on how ski size affects speed and control.

    More Alpine Skiing...

Trail Finder

US Map

Search by Keyword