{"product_id":"cylinder-kit-polini-evolution-p-r-e-4-100cc-piaggio","title":"Cylinder Kit Polini Evolution P.R.E 4 100cc Piaggio","description":"\u003cp\u003eThe Polini Evolution P.R.E. 4 – 100cc Cylinder Kit is an extreme racing cylinder kit designed for Piaggio 2-stroke engines.\u003c\/p\u003e\n\u003cp\u003eThis cylinder is designed for:\u003c\/p\u003e\n\u003cp\u003e- high RPM\u003cbr\u003e- maximum power\u003cbr\u003e- track\/drag\/running use\u003c\/p\u003e\n\u003cp\u003eP.R.E. 4 technology is based on an ultra-aggressive transfer port design, a very high port timing, and tight tolerances, resulting in a complete and consistent engine configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003eBore (mm): 52\u003cbr\u003eStroke (mm): 47\u003cbr\u003eDisplacement (cc): 99.7\u003cbr\u003ePiston pin diameter (mm): 14\u003cbr\u003eSquish (mm): 0.65\u003cbr\u003eConnecting rod length (mm): 100\u003cbr\u003eRing ring tolerance (mm): 0.35-0.40\u003cbr\u003ePiston-to-cylinder coupling (mm): 0.08-0.10\u003cbr\u003eCompression ratio: 16\u003cbr\u003eTightening torque - M7 cylinder (Nm): 14\u003cbr\u003eTightening torque - M7 cylinder head (Nm): 14\u003cbr\u003eTightening torque - M5 cylinder head (Nm): 8\u003cbr\u003eKart track fuel mixture percentage: 4%\u003cbr\u003eRace track fuel mixture percentage: 5%\u003cbr\u003eOptimal operating temperature (°C): 50-55\u003c\/p\u003e","brand":"Polini","offers":[{"title":"Default Title","offer_id":45178838548659,"sku":"140.0240","price":749.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0518\/6057\/0291\/files\/Cylinder_Kit_Polini_Evolution_P.R.E._4_100cc_2T.jpg?v=1770241324","url":"https:\/\/secretimport.com\/en\/products\/cylinder-kit-polini-evolution-p-r-e-4-100cc-piaggio","provider":"Secret Import ","version":"1.0","type":"link"}