{"product_id":"piston-kit-cast-51-96-std-ktm","title":"Vertex Cast Replica Top End Piston Kit 51.96mm Size B (175-22991B \/ 22991B) | KTM, Husqvarna \u0026 Gas-Gas 85\/105cc (03-25)","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eHigh-performance gravity-cast replacement top-end piston kit engineered to restore compression and crisp throttle response across modern Austrian mini-motocross platforms, matched to a Size B cylinder bore tolerance. Manufactured from a high-silicone aluminum alloy with a friction-reducing Molybdenum Disulphide skirt coating for a faster break-in and extended component life.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 175-22991B\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBrand Number:\u003c\/b\u003e 22991B\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComponent Type:\u003c\/b\u003e Cast Replica Top End Piston Kit (Includes piston, rings, wrist pin, circlips, gaskets, and wrist pin bearing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSize \/ Bore:\u003c\/b\u003e Size B (51.96 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial \u0026amp; Construction:\u003c\/b\u003e Gravity-cast high-silicone aluminum alloy with T-5 heat treatment and MoS2 skirt coating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTwo-Stroke Vehicle Fitment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eGas-Gas\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMC 85 (17\/14 \u0026amp; 19\/16)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Mini Motocross\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2021–2025\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHusqvarna\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTC 85 \/ TC 65\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Mini Motocross\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2014–2025\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eKTM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e85 \/ 105 SX, XC, SXS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Mini Motocross\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2003–2025\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn essential all-in-one top-end refresh kit covering a massive range of popular youth displacement platforms from the Pierer Mobility group, specifically sized to factory Size B cylinder tolerances. Having matching gaskets, bearings, and a precision-coated piston packaged together ensures proper clearance and reliable performance when servicing tired junior motors.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"VERTEX","offers":[{"title":"Default Title","offer_id":54585081430295,"sku":"175-22991B","price":171.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/6489-572a570431607.jpg?v=1785607435","url":"https:\/\/twostrokesonly.com\/products\/piston-kit-cast-51-96-std-ktm","provider":"🏁Two-Strokes Only🏁","version":"1.0","type":"link"}