razor mx400 dirt rocket kids ride on 24v electric toy motocross motorcycle dirt bike, speeds up to 14 mph, red razor a scaled down motocross bike with an electric motor, the razor mx400 dirt rocket electric toy motocross bike is ideal for ages 13+ and teens who want to enjoy a revved up version of the off road dirt bike experience. the mx400 dirt rocket, is a high performance, electric powered dirt bike with authentic dirt bike frame geometry and supercross inspired styling. with a high torque, powerful 400 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. grab on and ride the lightning with the incredibly fun razor mx400 dirt rocket electric toy motocross bike.