Tear up the track just like a real Supercross rider with the 2 Razor Electric Dirt Rocket Kids Motor Bikes. The orange MX650 bike is built for teenagers ages 16 years or older and has a punch with a high-torque chain-driven electric motor that achieves speeds of up to 17 miles per hour. This bike is constructed out of high-strength steel and bears up to 220 pounds. The red MX500 is built to accommodate riders 14 years or older who weigh under 175 pounds. With a high-torque powerful 500-watt electric motor large 16-inch and 14-inch pneumatic knobby tires for maximum power transfer and shatterproof plastic fairings and fenders this Dirt Rocket Bike is ready to hit the road at a speed of up to 15 miles per hour. After 40 minutes of continuous use recharge the dirt bikes with their included battery chargers Each bike can take anywhere from 8 to 12 hours to charge. Hop on the Razor Dirt Rocket Bikes and blast off for non-stop fun.