1.Control model:a) intelligent assistance power(1：1PAS) b) electric motor 2. Rated power of motor: 220W 3. Load: >75kg 4.Speed: 25-30km/h 5. Battery: 36V/12Ah lead-acid 6.Range per charge: a) Using electric motor: >30km b) Using intelligent assistance power: >45km 7.Charge time: 3-8 hrs 8.Power consumption: 1.1kWh/100km 9. Charge voltage: AC90V-260V 10.Weight: 38kg (with lead-acid battery) 11.Diameter of wheel: 24? 26? 12. Deraillure: 3 speed gear (SHIMANO)