Perfect for 3-5 year old kids under 75 lbs., with 14-20'' inseam. 12" composite wheels with pneumatic tires. Seat height: 13". Weight: 17 lbs. with battery. Frame: Aluminum tig welded. Fork: Steel, BMX style. Proprietary drive system. Power selection modes: > Low/Training mode ~ 5 mph. > Med/Transitional Mode ~ 7 mph. > High/Advanced Mode ~ 9 mph. Thermal protection for motor and controller. BMX chain and freewheel. Industrial grade lithium-ion battery and charger. Quick disconnect/connect battery. 20Vmax voltage (18Vnom). 2Ah. Up to 60 minute run time. 30-60 minute charge time.