37–45 Inch Boys Bikes
4 products
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XJD Boys & Girls BMX Bike with Training Wheels, 12/14/16" – Blue
The XJD Boys & Girls BMX Bike in Blue is a first pedal bike for kids roughly age…$99.99 - 119.99
$119.99 - 139.99 -

XJD Kids' Training Wheel Bike for Boys & Girls, 12/14/16 Inch – White
The XJD kids' training wheel bike in White is made for riders ages 3–8 (roughly …$169
$199 -

Black XJD Kids Bike for Boys – 12, 14 & 16 Inch Sizes
For a son between roughly 3 and 8 years old, the XJD Kids Bike in Black covers t…$169
$199 -

XJD Boys 12/14/16" Training Wheel Bike – Blue
The XJD Boys Bike in Blue is a training wheel bike for riders 71–122 cm tall—rou…$169
$199
About 37–45 Inch Boys Bikes
If you're browsing 37–45 inch boys bikes, you're likely fitting a young rider, generally 3-7 years old, on one of their very first pedal sets. These 12, 14, and 16-inch models are built for heights of 86-122 cm (34-48 inches), featuring training wheels and sturdy BMX-inspired frames that shrug off tumbles. Bold boys bikes colors like blue, black, and white lead the way, with girls bikes alternatives easy to find for sisters and twins. The XJD Boys & Girls BMX Bike in blue and the Black 12, 14 & 16-Inch Kids Bike are proven parent favorites.
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