{"product_id":"vertex-vtk22991a-top-end-piston-kit-ktm-105-sx-xc-moto-house-mx","title":"Vertex Top End Piston Kit VTK22991A (51.95mm) — KTM 105 SX\/XC 2004-2011","description":"\u003ch1\u003e\u003cstrong\u003eVertex Top End Piston Kit VTK22991A — KTM 105 SX \u0026amp; XC 2004-2011 (51.95mm)\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eEnsure your KTM 105 SX or XC stays at the front of the pack with the Vertex Top End Piston Kit (VTK22991A). This comprehensive kit provides a direct, high-quality cast OE replacement, engineered to restore factory-spec compression and performance to your 105cc 2-stroke engine.\u003c\/p\u003e\n\u003cp\u003eVertex cast pistons utilize an 18% silicone-content gravity-cast aluminum alloy, a material choice that offers exceptional dimensional stability even under the high-heat cycles of intensive racing. The high-tech Molybdenum Disulphite (MoS2) skirt coating minimizes friction, allowing for a faster, safer break-in period and providing long-term protection against cylinder wall scuffing.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Vertex Top End Piston Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-in-One Refresh:\u003c\/strong\u003e Complete top-end kit including the 51.95mm cast piston, rings, wrist pin, circlips, essential top-end gaskets, and a high-load wrist pin bearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Precision:\u003c\/strong\u003e Designed as a direct OE replica for reliable, perfect fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Aluminum Alloy:\u003c\/strong\u003e Features 18% silicone content to prevent thermal distortion and maintain structural integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoly-Coated Skirt:\u003c\/strong\u003e Reduces friction and helps the engine reach operating temperature more efficiently with a quicker break-in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT-5 Heat Treated:\u003c\/strong\u003e Undergoes a specialized hardening and tempering process for extended service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-family: sans-serif;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f4f4f4; text-align: left;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eVehicle Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2004-2011\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eKTM 105 SX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2008-2009\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eKTM 105 XC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I hone my cylinder before installing this piston?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Whenever installing a new piston and rings, it is highly recommended to perform a light, professional hone of the cylinder. This de-glazes the surface, which is essential for proper ring seating and establishing a correct oil film for engine longevity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e Always check the ring end gap inside your specific cylinder before final assembly. A quick measurement now ensures the rings won't bind at high operating temperatures, protecting your fresh top-end from damage.\u003c\/p\u003e\n\u003ch3\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eEssential Off-Road Motorcycle Tools\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003eHigh-Performance Premix Oils\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt Moto-House MX, we specialize in high-performance off-road parts. Our team has over 40 years of experience helping riders get the most out of their machines. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Vertex","offers":[{"title":"39.46\/ A-B Piston","offer_id":41091236560979,"sku":null,"price":196.37,"currency_code":"USD","in_stock":true},{"title":"39.47\/ C-D Piston","offer_id":41091236593747,"sku":null,"price":196.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/vertex-oem-replica-cast-top-end-piston-kit-5195mm-vtk22991a-2004-2019-ktm-105-sx-supermini-601735.jpg?v=1738047602","url":"https:\/\/motohousemx.com\/products\/vertex-vtk22991a-top-end-piston-kit-ktm-105-sx-xc-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}