Cleary Gecko 12"

Way lighter than the competition at 15.8 lbs. The coaster brake adds a few grams, but that is “outweighed” by the safety of having two braking methods available.
Front and rear hand brakes. Coaster brake.
Slim, junior race-style bike saddle designed to maximize a rider’s range of motion while minimizing chafing and weight.
Quick-release front wheel. Rear wheel with coaster hub attaches with a 15mm bolt.
Three-piece crank; Square taper bottom bracket.
Internal cable routing
Single speed drivetrain with removable chain guard.
Grips, handlebars and brake levers designed for the littlest hands.
Bike geometry designed to provide early riders with ample room to stand over the seat or top tube with two hands on the handlebars, and feet on the pedals or toes on the ground.