{"product_id":"70cc-high-performance-scooter-engine-kit","title":"81cc High Performance Cylinder Kit for 50cc GY6 139QMB Scooter Engines","description":"81cc high performance cylinder kit for 50cc GY6 139QMB scooter engines, by manufacturer NCY.\u003cbr\u003e\n\u003cbr\u003e\nThis scooter upgrade kit is a high quality kit that is perfect for upgrading your old 50cc 139QMB engine to 81cc so you don’t get left behind in today’s fast paced world.\u003cbr\u003e\n\u003cbr\u003e\nInstalling this upgrade kit will increase your engine bore size to 81cc, and includes an aluminum cylinder, 50 mm piston, piston rings, and gaskets.\u003cbr\u003e\n\u003cbr\u003e\nAfter installation, you will see an immediate increase in low end acceleration and an increase in top speed!\u003cbr\u003e\n\u003cbr\u003e\nThis 81cc scooter cylinder kit does not include the cylinder head. Use this kit with the NCY 50 mm cylinder head which can be found here:\u003cbr\u003e\n\u003cbr\u003e\n\u003ca href=\"http:\/\/www.monstorscooterparts.shop\/50cc-high-performance-cylinder-head.html\"\u003e50 mm High Performance Scooter Cylinder Head\u003c\/a\u003e\u003cbr\u003e\n\u003cbr\u003e\nCombine this kit with a high performance carburetor and exhaust for an even larger boost in performance.","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337105895586,"sku":"K72-7917","price":209.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/70cc-high-performance-scooter-engine-kit_1.jpg?v=1774816269","url":"https:\/\/monstorscooterparts.shop\/products\/70cc-high-performance-scooter-engine-kit","provider":"Monster Scooter Parts","version":"1.0","type":"link"}