9speed derailleur retro style electric bike

{"cid":"91148100","title":"25km\/h Electric Folding Bike 20 Inch Wheels , Ladies Fold Up Electric Bike With Shimano Derailleur","imgUrl":"https:\/\/img.chinax.com\/nimg\/bf\/71\/763efd0186d383c21226e9334113-200x200-1.jpg","attrs":{"Price":"USD330-390","Brand Name":"DREAM WHEEL","Model Number":"EBS150","Minimum Order Quantity":"10units","Delivery Time":"20-25days","Certification":"EN15194","Place of Origin":"CHINA","Payment Terms":"T\/T, Western Union, L\/C","Supply Ability":"7000PCS per month","Packaging Details":"Carton and protecting cover; 320pcs in 40\" HQ","Tire":"20\" x1.95","Color":"White, black, red,","Speed":"25km\/h","Fork":"suspenion","Battery":"36V 8Ah lithium battery","Frame":"Aluminum alloy"}}

{"cid":"91148789","title":"TST Carbon Steel Frame Electric Bike for Adults 250W for Rear Hub Motor 60 Miles Fat Tire Yellow","imgUrl":"https:\/\/img.chinax.com\/nimg\/1f\/70\/0b29b548d136eda5b6975c9c0cc2-200x200-1.jpg","attrs":{"Price":"$421-501","Brand Name":"TST","Model Number":"R7","Minimum Order Quantity":"1","Place of Origin":"China","Gears":"7","Range per Power":"50-60km(31.07-37.28miles)","Frame Material":"Carbon Fibre","Wheel Size":"20 Inches","Max Speed":"25km\/h(15.53mph)","Voltage":"48 V","Power Supply":"Lithium Battery","Braking System":"Hydraulic Disc Brake","Torque":"90-100 Nm(0-0in)","Charging Time":"5-8H","Motor position":"Rear Hub Motor","Battery Position":"Down Tube","Packaging":"100","Battery Capacity":"15 Ah, 15.0ah","Tire Width":"20*4\"","Special Feature":"Durable","motor":"Brushless","Type":"Electric Bike","Battery":"Lithium Battery, 48v 15ah lithium battery","Age Group":"Adult","Brake":"Hydraulic Disc Brake","Motor Power":"250 W(0.34hp)","Plug Type":"Us Plug, Swiss Plug, European Plug, Australian Plug, British Plug","Suspension Type":"Dual","Battery Type":"Lithium","Motor Type":"Brushless","Style":"Sport, Standard, Vintage, European, Classic, City bike, Urban, Dutch, Mountain, Military","Power Source":"Lithium Battery","Accessories":"toolkit, mudguard, HORN, Bell","Feature":"Lightweight, Strong","Rear Hub":"Hub Motor","Derailleur":"7-speed"}}

{"cid":"91184004","title":"On sale Front 2 Wheels Motorized Foldable Electric Tricycle Bike","imgUrl":"https:\/\/img.chinax.com\/nimg\/0e\/c5\/330e2f4f6db2485eebb553a648af-200x200-1.jpg","attrs":{"Brand Name":"Green","Model Number":"GM005","Minimum Order Quantity":"20FT","Delivery Time":"25 working days","Certification":"CE,EEC","Place of Origin":"CHINA","Payment Terms":"L\/C, T\/T","Supply Ability":"2000 per month","Model":"JX003","Battery":"36V\/48V","Motor":"250W","Max Speed":"20-30km\/h","Weight":"21.53kg","Brake":"Front and Rear Hydraulic disc brake","accessories":"Lamp and trumpet","endurance mileage":"30-70km"}}