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The Roaster 12" Bike is a great first bike and a great way to introduce toddlers to the fun of BMX and teach the basics of bike riding, with fully specd parts made especially for this size bike and a simple coaster brake hub. Recommended for ages 4 & up
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BMX BIKE SIZE GUIDE
BMX bikes are measured in two ways, the size of the wheel (20” is the standard BMX Wheel size) and the length of the frame which is gauged by the top tube measurement.
Below is a guide to what size you should be looking for. note there is some overlap in sizes as personal preference also comes into the equation.
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