Kids mountain bike with a 20-in wheel size is built for riders 48-60 in tall, giving growing kids a comfortable fit. An adjustable saddle and handlebar height let you raise the contact points as your child gets taller. A front suspension fork helps minimize vibrations on mountain trails, gravel, snow, and flat roads, while large pneumatic tires add non-slip, wear-resistant traction. The 6-speed drivetrain shifts with a simple twist, and dual V-brakes with a shorter-reach handbrake help small hands stop quickly and control up to 110 lbs.