Razor dirt rocket mx350 miniature electric motocross bike color: blue the razor dirt rocket mx350 offers you a scaled down dirt bike design the can carry a rider up to 150 lbs. Its geared for dirt with large, 10-in pneumatic knobby tires for maximum power transfer and a dual suspension for better handling. A variable speed, chain-driven motor provides quiet, yet powerful operation at speeds up to 12 mph. Recommended for ages 12 and up. With 12 pneumatic knobby tires, dual suspension and adjustable riser handle bars, your young dirt biker will have a great time riding around. This high performance bike with variable speeds, and a super quiet chain-drive motor holds up to 120 lbs. It cruises at speeds of up to 15 mph. With twist grip throttle acceleration control and a hand-operated rear brake, the journey is in the riders hands. Requires 2 12v sealed lead acid batteries (included). Fully charged battery gives 40 minutes of fun (charge time eight hours). The battery charger, kick stand and tools are also included. Safety equipment recommended, and this bike is not for use on streets or any place there is traffic. Some assembly required.