Description: Range per Power: 50-60km(31.07-37.28miles) Motor Power: 750w(1.01hp) Voltage: 48 V Battery Capacity: 15ah Motor position: Rear Hub Motor Suspension Type: Front Wheel Size: 29” Tire Width: 29*2.1 Braking System: Hydraulic Disc Brake Frame Material: Aluminum Alloy Max Speed: 30-50Km/h(18.64-31.07mph) Gears: 21 Speed Torque: 65nm(0in) Battery Position: Down Tube Power Supply: Lithium Battery Charging Time: 6-8 Plug Type: European Plug, British Plug Age Group: Adults, Teens Battery: Lithium Battery Motor Type: Brushless Power Source: Lithium Battery Battery Type: Lithium, Rechargeable Battery Battery Capacity: 15AH Rear Hub: Hub Motor Style: Standard, Classic, Sport, Mountain Brake: Hydraulic Disc Brake motor: Brushless Feature: Eco-Friendly, Waterproof, Strong, Lightweight, Quick Dry, Electric, High Speed Type: Mountain Bike, adult electric bike Derailleur: 21-speed Accessories: toolkit Place of Origin: Guangdong, China Brand Name: Bigfly Model Number: C29 Ultra Watt-Hour: 750 Selling Units: Single item Location: hong kong