This 18-in kids bike fits riders 47 to 59 in tall and 4 to 8 years old, with a saddle that adjusts from 24 to 28 in as legs get longer. Braking works two ways: a front hand lever slows the bike under control and back-pedaling engages the rear coaster brake for a quick stop at a curb. Pneumatic tires roll over sidewalk cracks instead of jarring through them, training wheels help a new rider stay upright, and a kickstand parks the bike after the ride. A fully enclosed chain guard keeps laces clear of the drivetrain, and the carbon steel frame arrives 85 percent assembled with CPSIA certification.