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How to fit a child's bike

4 STEPS

Choosing the right size bike for your child is critical for safe, comfortable and enjoyable riding. If a bike is too big or too small, it can be more difficult to handle on the road. 

WHAT YOU'LL NEED

Step

Measure their inseam

Children’s bicycles are measured in wheel sizes varying from 12 inches to 24 inches. The right size for your child depends mostly on their inseam measurement, so that’s the best place to start. 

Check out our handy chart to find out the best wheel size based on that measurement, as well as height and age. 

Step

Adjust the seat

The saddle height should be positioned where the knees are slightly bent when the foot is at the bottom of the pedal stroke. Younger children will feel most confident if they can reach both feet on the ground, while older children will want to be up on tippy toes. Make sure to insert the seat post at least as far as the minimum insertion mark. If you need to insert it above that mark, the bike is too small.

Step

Take it for a test ride

Once you’ve chosen a bike in the proper size range, let your child try it out to make sure it feels right to them. The reach, which is the distance from the shoulders to the handlebars, should feel comfortable and their arms should have a slight bend in the elbow. They should be able to turn the handlebars without overstretching or have the grips hitting their body.

Step

Add a helmet

Don't forget a helmet, bell and a light to make sure your child is safe.