{"product_id":"cylinder-works-cw50012k01-oem-style-cylinder-kit-2021-2023-gas-gas-mc-50-ktm-50-sx","title":"Cylinder Works CW50012K01 OEM Style Cylinder Kit 2021-2023 Gas Gas MC 50 KTM 50 SX","description":"\u003ch3\u003eProfessional Grade Engine Restoration for 50cc Racers\u003c\/h3\u003e\n\n\u003cp\u003eWhen your young racer’s engine loses compression or suffers a top-end failure, you need a solution that returns the machine to peak performance without the wait times of a machine shop. The Cylinder Works CW50012K01 OEM Style Cylinder Kit is a precision-engineered \u003cstrong\u003eOEM Replacement\u003c\/strong\u003e that allows you to swap your worn components for a fresh, bolt-on top end. Moto-House MX stocks these kits specifically because they offer a seamless installation process, ensuring your Gas Gas or KTM gets back to the track with factory-level reliability and power delivery.\u003c\/p\u003e\n\n\u003cp\u003eEngineering excellence is at the core of this kit, featuring a nickel silicon carbide-plated cylinder that provides extreme wear resistance and superior heat dissipation. To ensure maximum \u003cstrong\u003eRacing Performance\u003c\/strong\u003e, Cylinder Works pairs these cylinders with premium Vertex pistons, known for their low-friction skirts and high-silicon aluminum alloy construction. This combination reduces engine noise and extends the service life of the top end, even under the high-RPM demands of competitive 50cc racing. Made in the U.S.A., this kit is the gold standard for riders who refuse to compromise on quality.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Cylinder Works CW50012K01\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNickel Silicon Carbide Plating:\u003c\/strong\u003e Provides a durable, low-friction bore surface that outlasts standard factory sleeves.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMatched Vertex Piston:\u003c\/strong\u003e Includes a precision-fit Vertex piston kit designed for optimal ring seal and performance.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eDirect Bolt-On Design:\u003c\/strong\u003e Engineered to fit perfectly without any machining or modifications to the engine cases.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eComplete Gasket Set:\u003c\/strong\u003e Comes with all necessary top-end gaskets and O-rings to ensure a leak-free seal upon assembly.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eOEM Appearance:\u003c\/strong\u003e The exterior casting is designed to match the factory look, maintaining a professional aesthetic for your race bike.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When installing this kit on a 50cc machine, always double-check your ring end gap and ensure the arrow on the piston crown points toward the exhaust port to avoid catastrophic engine failure.\u003c\/p\u003e\n\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\"\u003e\n\t\u003cthead\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eYear Range\u003c\/th\u003e\n\t\t\t\u003cth\u003eVehicle Brand\u003c\/th\u003e\n\t\t\t\u003cth\u003eVehicle Model \u0026amp; Size\u003c\/th\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/thead\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003e2021 - 2023\u003c\/td\u003e\n\t\t\t\u003ctd\u003eGas Gas\u003c\/td\u003e\n\t\t\t\u003ctd\u003eMC 50\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003e2009 - 2023\u003c\/td\u003e\n\t\t\t\u003ctd\u003eKTM\u003c\/td\u003e\n\t\t\t\u003ctd\u003e50 SX \/ 50 SX Mini\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003e2017 - 2023\u003c\/td\u003e\n\t\t\t\u003ctd\u003eHusqvarna\u003c\/td\u003e\n\t\t\t\u003ctd\u003eTC 50\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003e2018 - 2019\u003c\/td\u003e\n\t\t\t\u003ctd\u003eHusqvarna\u003c\/td\u003e\n\t\t\t\u003ctd\u003eTC 50 Mini\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003e2011 - 2014\u003c\/td\u003e\n\t\t\t\u003ctd\u003eKTM\u003c\/td\u003e\n\t\t\t\u003ctd\u003e50 SXS\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does this kit include the cylinder head?\u003c\/strong\u003e\u003cbr\u003e\nA: No, this kit is designed to be used with your stock OEM cylinder head, though it includes the necessary head gaskets for installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this an oversized bore or a standard replacement?\u003c\/strong\u003e\u003cbr\u003e\nA: This is a 39.50mm standard (STD) bore kit, meaning it maintains the stock displacement and is legal for most stock-class racing associations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to re-jet my carburetor after installing this kit?\u003c\/strong\u003e\u003cbr\u003e\nA: Since this is an OEM-spec replacement, your stock jetting should remain very close, though we always recommend checking your spark plug color after the first ride.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended Pairings\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eMaxima Castor 927 2-Stroke Premix Oil\u003c\/li\u003e\n\t\u003cli\u003eNGK Iridium Spark Plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eStop by our local Store Montverde, FL or lightning-fast shipping across the USA.\u003c\/p\u003e\n\n\u003cp\u003eMoto-House MX – Choice of Champions – is located in Clermont\/Montverde, FL. The Best Motocross\/UTV \u0026amp; ATV Shop in Central Florida.\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cdiv style=\"text-align: left;\"\u003eTo see other Cylinder works kit \u003ca href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=cylinder+works+kits\"\u003eClick to see more cylinder works kits\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-mc-50-performance-upgrades-engine-mods-accessories-moto-house-mx\" target=\"_blank\"\u003eGas Gas MC 50 Performance Parts and Accessories\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cspan style=\"background:#bd081c  no-repeat scroll 3px 50% \/ 14px 14px; border-radius:2px; color:#ffffff; cursor:pointer; display:none; font:bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; opacity:1; padding:0px 4px 0px 0px; position:absolute; text-align:center; text-indent:20px; width:auto; z-index:8675309\"\u003eSave\u003c\/span\u003e\u003c\/div\u003e","brand":"Cylinder Works","offers":[{"title":"Default Title","offer_id":40857039568979,"sku":"CW50012K01","price":448.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/cylinder-works-oem-style-cylinder-kit-cw50012k01-3950std-2021-2023-gas-gas-mc-50-635985.jpg?v=1735340984","url":"https:\/\/motohousemx.com\/products\/cylinder-works-cw50012k01-oem-style-cylinder-kit-2021-2023-gas-gas-mc-50-ktm-50-sx","provider":"Moto-House MX","version":"1.0","type":"link"}