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Mountain bike size

It’s tempting to buy a child a large bike, hoping that they will grow into it–but a large bicycle is dangerous, especially when the child cannot control it. Children require an appropriate mountain bike size to remain safe on the trails.

After a kid graduates from training wheels, they should move up to 20” wheels and specific frame sizes. Mountain bike size does not correspond to specific ages but rather comfort level. While seated, a child’s leg should not be straight at the bottom part of the rotation, but slightly crooked.

The correct mountain bike size for adults can be measured by standing over the frame. While straddling the bar, there should be 3” of space between the top tube and the rider. Riders also measure the inside of their leg to the floor and then subtract 13” from the final measurement–this gives the appropriate frame size.

 

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