The Schwinn Ranger Girls Mountain Bike in teal has a sturdy, steel frame and 24-inch wheels. Knobby tires provide great traction on the road. With 21 gears, this 24-inch, mountain bike can handle a variety of different terrains. It has a Shimano derailleur for smooth and precise gear changes. You can easily adjust the bikes seat height with its quick-release feature. The linear front and rear brake system provides safe stopping control. This girls" mountain bike has an attached kickstand for easy parking. It is designed for girls ages 16 and up.