self generating exercise bike wind resistance

{"cid":"91199507","title":"Self - Generating Stationary Bike Workout Machine , Upright Motorized Gym Cycle Bike","imgUrl":"https:\/\/img.chinax.com\/nimg\/f1\/5c\/170192749691cdd2e7c5defb094b-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"HS Fitness","Model Number":"HS-7200","Minimum Order Quantity":"Negotiable","Delivery Time":"10-15 work days","Certification":"CE,COC,ISO","Place of Origin":"Guangzhou,China","Payment Terms":"T\/T, Western Union, MoneyGram","Supply Ability":"300\/month","Packaging Details":"wooden cases,cartons","Size:":"1120 *570 *1380mm","Control:":"With Hand-Pulse System For Heart Rate Display","Flywheel:":"With High Power Magnet And Flywheel To Get Sufficient Tension Torque And Consistent Resistance","Display:":"Time,speed,distance,calories,watts,heart Rate Control Resistance To Change,heart Rate Recovery Function,measuring Lipid,12 Program Control;","System:":"EMS Bike With Self- Generating Power System","Pad:":"New Molding Cushion","Max User Weight:":"180kg","High Light:":"bike workout machine, bicycle exercise equipment","Resistance:":"With 16-step Tension Control System"}}

{"cid":"91217483","title":"Weather Proof Polycarbonate Dome Tent Wind Resistance Weather Bubble Tent","imgUrl":"https:\/\/img.chinax.com\/nimg\/ef\/95\/cbb026d182da783be807e2b03cbe-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"JC DOME","Model Number":"JD3.5M-014","Minimum Order Quantity":"1 set","Delivery Time":"7-10 working days","Certification":"ISO, ROSH","Place of Origin":"Shanghai","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"2000 sets per month","Packaging Details":"Wooden box, size is 2.85*2.15*1.05m, about 6.43 CBM","Material":"PC Polycarbonate + Aluminium","Diameter":"3.5m","Height":"2.7m","Indoor Area":"9.6 square meters","PC Panel":"6pcs","Weight":"165kg"}}

{"cid":"91175494","title":"Durable Enameled Copper Winding Wire Speaker Coil Wire Excellent Chemical Performance","imgUrl":"https:\/\/img.chinax.com\/nimg\/89\/be\/888aeb6793962b328911e2269416-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"Ruiyuan","Model Number":"UEW","Minimum Order Quantity":"2kgs","Delivery Time":"7-15 work days","Certification":"ISO9001\/ISO14001 \/UL\/SGS","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Packaging Details":"Carton","Type":"Insulated","Conductor Material":"Copper","Insulation Material":"Enameled","Conductor Type":"Solid","Standard":"IEC\/JIS\/NEMA","Insulation":"Polyurethane","Solderability":"Yes","Conductor":"Copper"}}