1. 100km driving distance with full charge 2. Maximum 45km/h speed 3. 1500-2000W high quality motor 4. 72V20AH battery with 6-8 hours to full charge 5. Three speed function 6. Auto alarm system 7. Front and back disk brake for your safety 8. EEC certification. 20"-24pcs, 40"-48pcs,40HQ-78~84pcs.