Mongoose Burst kids bike, single speed, 18-inch wheels, blueLearning to ride is rad with the Burst kids bike by Mongoose. This BMX-style ride features a durable steel frame, single speed drivetrain, and removable training wheels, making it a great choice for any beginning rider. Plus, it has both a rear coaster (pedal) brake for intuitive stopping, and front hand brake to prepare your child for hand brake only bike. The Burst also includes a tool-free adjustable seat post that makes it easy to fine tune the fit as your child grows taller. Rad fun is on the way with the Burst by Mongoose.