Razor MX350 Dirt Rocket Electric Motocross Bike Scaled down, battery-powered electric moto-cross dirt bike for off-road riding Super quiet, single speed, chain driven motor with a twist grip throttle control Large knobby tires; hand operated rear brake and battery life is up to 30 min Speeds up to 14 miles per hour with no pedaling needed! Designed for ages 13 and up; 90-day warranty Item non-returnable Max weight is 140 pounds