Kids' bike sizes are typically determined by the diameter of the wheels and are measured in inches. The appropriate size for a child depends on their height, leg length, and riding ability. Here's a general guideline for kids' bike sizes based on wheel diameter:
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12-inch wheels: Suitable for children with a height of around 2'10" to 3'4" (86 to 102 cm). These bikes are often the first pedal bikes for toddlers transitioning from balance bikes.
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14-inch wheels: Suitable for children with a height of around 3'2" to 3'6" (96 to 107 cm). These bikes provide a slightly larger size for kids who have outgrown 12-inch bikes.
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16-inch wheels: Suitable for children with a height of around 3'6" to 4'0" (107 to 122 cm). These bikes are commonly used by kids aged 4 to 6 years.
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20-inch wheels: Suitable for children with a height of around 4'0" to 4'5" (122 to 135 cm). These bikes are often used by kids aged 6 to 8 years and provide a transition from smaller bikes to larger ones.
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24-inch wheels: Suitable for children with a height of around 4'5" to 4'9" (135 to 145 cm). These bikes are commonly used by kids aged 8 to 11 years and are larger than typical kids' bikes.
It's important to note that these are general guidelines, and individual children may have different proportions. It's recommended to consider not only the wheel size but also the bike's frame geometry, adjustable seat height, and reach to the handlebars to ensure a comfortable and safe fit.
When selecting a bike, it's a good idea to have the child try it out and test the fit and comfort. The child should be able to straddle the bike with their feet flat on the ground while seated and have a slight bend in their knees when pedaling. Check out our Sizing Guide to choose your Kid's Bike.
