e cargo bike with speed sensor

{"cid":"91148789","title":"EU Aluminum Frame Hybrid Electric Cargo Bike with Torque Sensor 750W Long Tail Cargo for 2 Kids 48v Lithium Urban Commute E-bike","imgUrl":"https:\/\/img.chinax.com\/nimg\/e8\/54\/718002b2ed6ef6d240b3117d419c-200x200-1.jpg","attrs":{"Price":"\u20ac680.06-817.79","Brand Name":"Hovsco","Model Number":"HovCart","Minimum Order Quantity":"1","Place of Origin":"Guangdong, China","Gears":"7 Speed","Range per Power":"> 60 km","Frame Material":"Aluminum Alloy","Wheel Size":"20\"","Max Speed":"30-50Km\/h","Voltage":"48 V","Power Supply":"Lithium Battery","Braking System":"Disc Brake","Torque":"80-90 Nm","Charging Time":">3 hours","Motor position":"Rear Hub Motor","Battery Position":"Down Tube","Packaging":"276","Battery Capacity":"15AH, 15AH","Watt-Hour":"720Wh","Special Feature":"Lightweight","Driven Type":"Electric, throttle assist, pedal-assist","motor":"Brushless","Motor Power":"750 W","Suspension Type":"Front","Power Source":"Lithium Battery","Gear Shifter Type":"thumb shifter","Tire":"20*4","Sensor":"Torque","Free accessories":"Rear rack, protection boards, foot supports"}}