Razor Dirt Rocket Electric Motocross Off-Road Bike - SX350, SX500, MX350, MX650 ModelsAuthentic motocross frame geometry, the MX350 scales down the dirt bike to size for riders ages 13+ and up to 140 lb (64 kg) High torque, rear wheel chain drive delivers increased power and traction Powers riders at speeds of up to 14 mph (22 km h) with up to 30 minutes of continuous use Features adjustable angle, riser style handlebars, spoked wheels with 12 pneumatic, knobby tires, retractable kickstand, and hand operated rear brake 24V (two 12V)