Model: FD MIDDLE MOTOR Dimensions LWH (Exterior Size): 2090*750*1085mm Wheelbase: 1340mm Seat Height: 780mm Range: 100–110 KM Max Speed: 80–85 KM/H Motor Type: Middle Motor (Mid-Drive Motor) Rated Power: 3500W Peak Power: 5500W Maximum Torque: ≥260N 0–45KM/H Acceleration Time: 4S Battery: 72V45Ah Battery Weight: 27KG Ground Clearance: 140mm Maximum Laden Mass: 150KG Wheels (Front/Rear Specs): Front:1.6–18 / Rear:1.85–18 Tyres (Front/Rear Specs): Front:2.75–18TL / Rear:90/90–18TL Transmission Model: Chain Brake System: Front:φ240 Disc / Rear:Drum Driving System: 3 gears Climbing Capacity: 17° Lights: LED light all around Quantity Per Container: 40HQ SKD 78 PCS / CKD 177 PCS