{"product_id":"ncy-cylinder-kit-81cc-iron-50mm-qmb139-1100-1237","title":"NCY Cylinder Kit  4T (81cc, Iron, 50mm); 139QMB","description":"\u003cp\u003eNCY GY6 50\/139QMB 50mm bore Cast Iron Cylinder Kit w\/o head. The perfect upgrade for most 4T 139QMB\/GY6 50 scooters, this bolt-on 81cc kit will really give your scooter some go. It is recommended to get part number \u003ca href=\"https:\/\/www.scooterworks.com\/products\/ncy-performance-cylinder-head-50mm-81cc-alloy-qmb139?variant=46756516069656\" target=\"_blank\" title=\"NCY Performance Cylinder Head (50mm, 81cc, Alloy); 139QMB\" rel=\"noopener\"\u003e1100-1239\u003c\/a\u003e\u003ca href=\"http:\/\/www.scooterworks.com\/NCY-Performance-Cylinder-Head-81cc-Alloy-139QMB-P985.aspx\"\u003e\u003c\/a\u003e, 50mm big valve head as well, as most stock heads will not fit.\u003c\/p\u003e\u003cp\u003eIn addition, we really recommend \u003ca href=\"https:\/\/www.scooterworks.com\/products\/ncy-performance-camshaft-qmb139?variant=46756517937432\" target=\"_blank\" title=\"NCY Performance Camshaft; 139QMB\" rel=\"noopener\"\u003e1100-1250\u003c\/a\u003e, NCY Performance Camshaft as an amazing complimentary item to this kit. It will allow the kit to perform to its maximum potential and go 50-55 MPH!\u003c\/p\u003e\u003cp\u003eHave a look at our Decompression Tube Assembly (\u003ca href=\"http:\/\/www.scooterworks.com\/NCY-Oil-Decompression-Tube-GenuineGY6-P1023.aspx\"\u003e1100-1282\u003c\/a\u003e) which replaces your dipstick and allows excess crankcase pressure to be released. Good idea to install one of these alongside any cylinder kit upgrade.\u003c\/p\u003e\u003cp\u003eNot legal for use in California on pollution controlled vehicles. Check local laws before installing.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch3 style=\"color: #983d3c;\"\u003eThis product is not intended for use on public roads or land.\u003c\/h3\u003e","brand":"NCY","offers":[{"title":"Default Title","offer_id":46756515414296,"sku":"1100-1237","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/products\/1100-1237_fa20e9af-22a5-4c5d-a867-1c7e01a17bab.jpg?v=1695268805","url":"https:\/\/www.scooterworks.com\/products\/ncy-cylinder-kit-81cc-iron-50mm-qmb139-1100-1237","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}