electric bike with motion evaluation system

{"cid":"91202006","title":"Hydraulic Brake 26\"X4 Tyre 500w Fat Tire Electric Bike Ebike With GPS Locating LCD","imgUrl":"https:\/\/img.ismap.com\/nimg\/f2\/1d\/777013e4129f7070a056418ef2d2-200x200-1.jpg","attrs":{"Price":"$800.00\/Sets","Brand Name":"Topshine\/neutral","Model Number":"TSMB06","Minimum Order Quantity":"1piece","Delivery Time":"1-8 work days","Certification":"CE","Place of Origin":"Guangdong, China","Payment Terms":"T\/T, Western Union, MoneyGram,paypal","Supply Ability":"100000pcs\/month","Packaging Details":"Unit weight: 23Kg ,Pack carton: 132*23*75cm","Wheel Size":"26\"","Range per Power":"31 - 60 km","Frame Material":"Aluminum Alloy","Max Speed":"30-50Km\/h","Voltage":"36V\/48V","Power Supply":"Lithium Battery","Braking System":"Disc Brake","Torque":"30-50 Nm","Charging Time":">3 hours","Motor position":"Rear Hub Motor","Battery Position":"Down Tube","Battery Capacity":"13.4 Ah","GPS tracker":"Online GPS tracking","LCD display":"Receive and showing E-Message","Odometer":"Built-in Compass","Compass":"Electronic compass","Screen":"Waterproof","Report":"Max speed and average speed report","Bicycle computer":"Built-in siren","Fitness function":"Calories calculate and statistics","Altitude Detection":"Real time altitude detection"}}