{"product_id":"culatin-cilindro-italkit-ci-34-085-gr-ktm-85-sx-18-25-d-47mm-piston-10º","title":"Piston crown Cylinder Italkit CI.34.085.GR KTM 85 SX 18-25 d.47mm piston 10º ","description":"\u003cp\u003e\u003cstrong\u003eItalkit Ø47 mm cylinder head insert\u003c\/strong\u003e for the Cylinder kit \u003cstrong\u003eCI.34.085.GR\u003c\/strong\u003e for \u003cstrong\u003eKTM 85 SX 2018-2025\u003c\/strong\u003e, specifically designed to work with the \u003cstrong\u003eItalkit 4279\/1 piston with a 10° crown\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIf you're building a 2T engine, the cylinder head insert is one of those parts where \u003cstrong\u003eyou can't just fit any one\u003c\/strong\u003e. The shape of the chamber and, above all, the geometry of the \u003cstrong\u003eSquish\u003c\/strong\u003e directly influence how the engine compresses, burns the mixture, and delivers power.\u003c\/p\u003e\n\u003cp\u003eThis cylinder head insert is machined to match the \u003cstrong\u003e10° profile of the 4279\/1 piston\u003c\/strong\u003e. This way, when the piston reaches TDC, the Squish band maintains the correct geometry and pushes the mixture from the outside toward the center of the chamber. That's exactly where you want it: \u003cstrong\u003econcentrated around the Spark plug and with plenty of turbulence just before ignition\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhat do we achieve with this? Faster, more controlled combustion and, with the Squish properly set, an engine that \u003cstrong\u003eresponds more forcefully to throttle input, pulls better through the midrange, and keeps pushing when it starts working hard at high RPM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAnd here's the important part: the \u003cstrong\u003e10° piston and this cylinder head insert are designed to work together\u003c\/strong\u003e. If we fit a cylinder head insert with different geometry, we can alter the Squish band, the compression ratio, and the shape of the chamber, losing precisely the performance we're looking for in a build of this level.\u003c\/p\u003e\n\u003cp\u003eCombined with the \u003cstrong\u003esingle-ring Italkit piston\u003c\/strong\u003e, we get a setup highly focused on an 85cc Racing engine: less friction in the piston for quick RPM gain and a \u003cstrong\u003ecombustion chamber designed to take advantage of that engine speed when the engine starts to rev out\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e Ø47 mm.\u003c\/li\u003e\n\u003cli\u003eSpecific for the \u003cstrong\u003eItalkit 4279\/1 piston\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eGeometry for a piston with a \u003cstrong\u003e10° crown\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eDesigned to work with a \u003cstrong\u003especific Squish band\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eCompatible with the \u003cstrong\u003eItalkit CI.34.085.GR\u003c\/strong\u003e Cylinder kit.\u003c\/li\u003e\n\u003cli\u003eApplication: \u003cstrong\u003eKTM 85 SX 2018-2025\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation tip:\u003c\/strong\u003e in an assembly with these characteristics, it is worth measuring the \u003cstrong\u003eactual Squish once the engine is assembled\u003c\/strong\u003e. It is a critical measurement for achieving the desired performance and ensuring that the piston and cylinder head insert work with the correct clearance.\u003c\/p\u003e ","brand":"Italkit","offers":[{"title":"Default Title","offer_id":67613008462215,"sku":"CU.34.85.2","price":43.66,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0860\/6223\/5959\/files\/CU.34.85.2.webp?v=1790933535","url":"https:\/\/motoscoot.net\/en\/products\/connecting-rod-cylinder-italkit-ci-34-085-gr-ktm-85-sx-18-25-d-47mm-piston-10","provider":"Motoscoot","version":"1.0","type":"link"}