how to make a bicycle generator

{"cid":"91192893","title":"IP67 12V Waterproof Cable Connector 4 Pin PVC Rubber For Bicycle Accessory Lines","imgUrl":"https:\/\/img.ismap.com\/nimg\/d5\/74\/d1d2ef57315c0610ff83b8c68b78-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Realeader","Model Number":"DR-D08","Minimum Order Quantity":"10pieces","Delivery Time":"5-8 working days","Certification":"ISO9001","Place of Origin":"China","Payment Terms":"L\/C, D\/P, T\/T, Western Union, MoneyGram , Paypal","Supply Ability":"100000pieces\/Month","Packaging Details":"25*20*16CM","Product":"Waterproof DC Plug","Pins":"2pin\/3pin\/4pin\/5pin\/6pin","Material":"PVC Rubber","Working temperature":"-40~+120\u2103","Color":"Black","Certificate":"ISO9001","Function":"Dustproof","IP Level":"IP67"}}

{"cid":"91199757","title":"125V Snap Action Micro Momentary Switch TUV Approved For shared bicycles","imgUrl":"https:\/\/img.ismap.com\/nimg\/a2\/f2\/24d89bf252047a2938c1e6c44559-200x200-1.jpg","attrs":{"Price":"Negotiate","Brand Name":"KKG","Model Number":"Micro Switch","Minimum Order Quantity":"Negotiate","Delivery Time":"Negotiate","Certification":"CE \/ SGS \/ ISO9001","Place of Origin":"Dongguan China","Payment Terms":"T\/T, L\/C, Western Union","Packaging Details":"Export package","Name":"Snap Action Micro Momentary Switch","Durability":"\u2265500000 cycles min","Dielectric strength":"\u2265500VAC\/1min","Contact resistance":"100mQ Max","Vibration Durability":"10~ 55Hz move0.75mm(p-p)","Storage Temperature":"-40*C-+85*C","Brand":"KKG","Type":"Quick Connect Terminal","Protection Level":"IP67","Function":"Waterproof"}}