rear disc brake conversion motorcycle

{"cid":"91168331","title":"48V \/ 72v 3KW Hub Motor Electric Bike Kit , TFT LCD Disc Brake Rear Wheel","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/51\/dd\/e9b920e887c17b2beefdffbbdc36-200x200-1.jpg","attrs":{"Price":"usd 445 pc","Brand Name":"NC","Model Number":"enc3000","Minimum Order Quantity":"1","Delivery Time":"7-15 working days","Certification":"CE","Place of Origin":"CHINA","Supply Ability":"500 pc week","Packaging Details":"carton with foam","Motor":"48v 3000w brushless gearless hub motor","Speed":"25-70km\/h","controller":"72v60A","throttle":"Twist throttle","PAS":"1:1 Pedal Assistant System","Brake lever":"electric brake levers","display":"TFT LCD","tire":"with or without","lithium\u3000battery":"48v 26ah lithium battery"}}

{"cid":"91202998","title":"BLDC motor 1000W electric motorcycle conversion kit \/ Electric scooter motor and controller","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/3a\/0d\/49a641f59af2b4086274d8f32337-200x200-1.jpg","attrs":{"Voltage":"48V","Design":"Brushless","Wattage":"> 400w","Motor":"DongNan Branded ,supply by ourself","Warranty":"2 years","Controller":"Germany Quality","Wheel size":"10\" or 12\" or customize","Throttle":"thumb throttle with LED battery indicator","Brake type":"drum brake ,disc brake or not","Other conditions":"Contact me for details","Speed":"5-45 km\/h","Rated Power":"500w-1000w","Type":"Brushless Dc Hub Motor","Port":"Shanghai"}}