M90 Adult Electric Bike 29 Inch Mountain Bike 48V 17Ah Removable Lithium Battery Front & Rear Hydraulic BrakeBattery capacity: 48V 17Ah Charging time: 5 7 hours Charging methods: Charge directly or remove the battery to charge it Max speed: 40km h Maximum Range: Full electric 30 40km, pedal assist mode 60 80km Motor power: 48V 500W Transmission: Shimano 7 speed Tire specifications: 29*2. 25 Frame materials: Alluminio alloy Handlebar height: 110cm Seat height: 81 96cm Suitable height: 170 200cm Torque: 56N. M Gradeability: 35 Body weight: 32KG Highest load: