{"product_id":"athena-cylinder-kit-big-bore-47-6mm-bore-p400485100099","title":"Athena Cylinder Kit Big Bore 47.6mm Bore P400485100099","description":"\u003cbr\u003e \u003cp\u003eA NEW AND REVOLUTIONARY BIG BORE CYLINDER KIT FOR 50 cc HORIZONTAL AIR-COOLED MINARELLI ENGINES, THUS FOR KNOWN APPLICATIONS SUCH AS APRILIA RALLY, MALAGUTI F10, F12, F15 AND YAMAHA JOG!\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eAthena's technical department has managed to provide this new big bore cylinder kit excellent solutions, currently only reserved for engines designed for higher performance such as on the 2T Racing GP. The various innovative technical solutions introduced for this project have now allowed us to expand our grasp with ultimate engine performance, which has never been achieved before.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eMAIN FEATURES\u003c\/p\u003e\u003cp\u003e1- REVOLUTIONIZED CYLINDER PORTS\u003c\/p\u003e\u003cp\u003e2- AUTO-CENTERING HEAD\u003c\/p\u003e\u003cp\u003e3- NEW RACING PISTON\u003c\/p\u003e\u003cp\u003e4- FASTENING SYSTEM REINVENTED\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eWith this new kit, Athena introduces numerous solutions never before seen on the market for these applications. The result is simply the most incredible performing cylinder kit ever invented for this engine.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eREVOLUTIONIZED CYLINDER PORTS\u003c\/p\u003e\u003cp\u003eThe great experience of Athena technicians in the world of 2T, has allowed us to challenge the traditional design. The exhaust\u003c\/p\u003e\u003cp\u003eports have been totally reinvented. Thanks to the Thermo-Fluid Dynamic analysis systems of the engine, it has been possible to increase the performance of the engine in terms of power and torque, with results never achieved like these, until now.\u003c\/p\u003e\u003cp\u003eAll because of the innovative system, which allows fixing the cylinder to the crankcase without the use of studs. The design allowed the adoption of an exhaust outlet with a bigger oval shape and side auxiliary ports. This solution cannot be found on any other cylinder of this type today, on the market.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eAUTO-CENTERING HEAD\u003c\/p\u003e\u003cp\u003eThe cylinder head is another element where Athena R\u0026amp;D has paid close attention to the redesign of the combustion chamber, which has included a study of the internal configuration to maximize the power generated by the combustion phase.\u003c\/p\u003e\u003cp\u003eCNC machining has a setting that protrudes 1.5 mm from the support surface; this element, in addition to facilitating installation, allows it to maintain a perfect centering on the cylinder. In addition, the sealing capacity and efficiency of the entire cylinder kit provides yet another great benefit.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eNEW RACING PISTON\u003c\/p\u003e\u003cp\u003eThe study of the flat head piston was guided specifically with a keen focus on the interaction with the intake. The CNC machined window on the piston skirt is designed to maximize the incoming flow, thus promoting greater pressure on the pump crankcase and better lubrication of the needle bearing.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003ePATENTED FASTENING SYSTEM REINVENTED\u003c\/p\u003e\u003cp\u003eAll the normal head and cylinder clamping, which was based on the studs, has been eliminated in favor of the introduction of a new system that adopts special bolts usually only used with the highperformance engines. The clamping of the cylinder to the crankcase (racing type) with bolts and dedicated key is a solution, which on one hand reduces the expansion of the cylinder with more efficient tightening, on the other hand, it allows the sophisticated redesign of the exhaust port – making this product so unique in its performance.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cstrong\u003e\u003cp\u003eDescription:\u003c\/p\u003e\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003eSensitive increase in performance without compromising engine reliability\u003c\/li\u003e\n\u003cli\u003eMaximum durability and smoothness guaranteed by a special nickel and silicon treatment of the barrel\u003c\/li\u003e\n\u003cli\u003eCylinder made of a special light aluminum alloy\u003c\/li\u003e\n\u003cli\u003eReinvented and Patented Athena fixing system\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eBrand: \u003c\/strong\u003eAthena\u003cbr\u003e\u003cstrong\u003ePart Number: \u003c\/strong\u003eP400485100099\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAprilia Rally 50 1995-2003\u003c\/li\u003e\n\u003cli\u003eAprilia Scarabeo 50 2T 1993-2005\u003c\/li\u003e\n\u003cli\u003eAprilia SR50R Replica SBK ARIA 1994-2001\u003c\/li\u003e\n\u003cli\u003eBenelli Pepe 50 1999-2001\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNote: Image is for reference only, actual product may vary slightly.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Athena","offers":[{"title":"Default Title","offer_id":45159899103311,"sku":"P400485100099-ATHENA-0426-ATH","price":333.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/7120\/7759\/files\/P400485100099_c8af8edb-db65-48d8-aff7-dffac5a603cc.jpg?v=1777657236","url":"https:\/\/lionparts.com\/products\/athena-cylinder-kit-big-bore-47-6mm-bore-p400485100099","provider":"Lionparts Powersports","version":"1.0","type":"link"}