Perfect for 4-8 year old kids under 75 lbs. with 18-24 inseam16 composite wheels with pneumatic tiresSeat height: 17 Weight: 20 lbs. with batteryFrame: Aluminum tig weldedFork: Steel BMX styleProprietary drive systemNew high-output brushless motorPower selection modes:> Low/Training mode ~ 5 mph> Med/Transitional Mode ~ 7.5 mph> High/Advanced Mode ~ 13 mphThermal protection for motor and controllerBMX chain and freewheelIndustrial grade lithium-ion battery and charger> Quick disconnect/connect battery20Vmax voltage (18Vnom)4AhUp to 60 minute run time45-60 minute charge timeQuick change lithium-ion battery