Your kids aren't afraid of a little dirt. These 2 Razor MX400 Dirt Rockets (1 black and 1 green) are ideal for kids and teens ages 13 years and older who want to enjoy a revved-up version of the off-road dirt bike experience. This dirt bike is a high performance, electric-powered, scaled-down motocross bike with authentic dirt bike frame geometry and Supercross-inspired styling. With a high-torque, powerful 350-Watt electric motor, large 12-inch pneumatic knobby tires for maximum power transfer, speeds up to 14 miles per hour, and up to 30 minutes of continuous use (up to 10 miles on a single charge), you'll be the king of the dirt hill. The road (and the fun) doesn't stop where the sidewalk ends and your kids can explore it with these 2 Razor MX400 Dirt Rockets.