The Apollo DB-21 Kids Dirt Bike sports a reliable 70cc 4-stroke engine, easy to operate 4 speed semi-automatic transmission and removeable training wheels! The air-cooled engine and kick start keep the bike dead simple for years of low maintenance riding. And the high-stregth tubular steel frame with telescopic front forks and rear monoshock swingarm mean this little machine can handle whatever your kid can dish out and still be ready to hand down when they outgrow it. Designed with 10 inch wheels and 25 inch seat height, making it very similar in size to a Yamaha PW50, Honda CRF50 or Suzuki DR-Z70. The included training wheels can easily be added or removed in minutes and the semi-auto tranny can be run in just one or more gears depending on the need of your little rider! So it’s the perfect setup for small children just learning to ride. Small kids will be most comfortable with the trainers on and riding in 1st and 2nd gears to keep speed down while providing good torque and pull.