{"product_id":"athena-cylinder-kit-stock-bore-for-yamaha-yz450f-2020-2022-p400485100091","title":"Athena Cylinder Kit Stock Bore For Yamaha YZ450F 2020-2022 P400485100091","description":"\u003cbr\u003e \u003cp class=\"ql-align-justify\"\u003e\u003cstrong\u003eDurability, consistent performance, same reliability as the OE\u003c\/strong\u003e: all these are hallmarks of the new \u003cstrong\u003eAthena Standard Bore cylinder kit \u003c\/strong\u003efor \u003cstrong\u003eYamaha YZ 450 F 2020\/2022\u003c\/strong\u003e.\u003c\/p\u003e\u003cp class=\"ql-align-justify\"\u003e \u003c\/p\u003e\u003cp class=\"ql-align-justify\"\u003e\u003cstrong\u003eCompletely designed in Italy by the R\u0026amp;D department\u003c\/strong\u003e, this kit is the aftermarket solution to guarantee efficiency, performance and safety with components that are all Athena branded and can \u003cstrong\u003esystematically replace the originals\u003c\/strong\u003e: an aluminum cylinder with nickel coating, a forged piston with a special hardening and anti-seizing coating and a gasket kit produced using state-of-the-art manufacturing processes.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe cylinder kit was also tested on the \u003cstrong\u003eengine dynamometer bench\u003c\/strong\u003e under \u003cspan style=\"color: windowtext;\"\u003eultimate \u003c\/span\u003estress load, further testing on the \u003cstrong\u003etrack\u003c\/strong\u003e verified its superb performance even in the most extreme conditions.                            \u003c\/p\u003e\u003cp\u003eThe Athena kit was developed to offer a reliable product at a \u003cstrong\u003emore competitive price\u003c\/strong\u003e than the original cylinder kit \u003cstrong\u003ewithout making any compromises\u003c\/strong\u003e in terms of \u003cstrong\u003epower, torque, and durability, resulting in a superior product\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe Yamaha YZ 450 F 2020\/2022 Standard Bore cylinder kit can be installed \u003cstrong\u003ewithout any crankcase machining.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTECHNICAL FEATURES\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe YZ 450 F 2020\/2022 engine was developed by Yamaha to make it more compact and lighter, as well as redesigning its configuration and compression ratio. To comply with these new characteristics, the Athena technicians have designed components of the highest quality and precision:\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eALUMINUM CYLINDER\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCompared to the Yamaha YZ 450 F bikes built before 2020, the Japanese motorbike manufacturer has designed the shape and inclination of the cylinder and oil passages. For this reason, the \u003cstrong\u003eAthena R\u0026amp;D team has studied and re-engineered the cylinder\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eProduced by \u003cstrong\u003egravity casting\u003c\/strong\u003e and sustained a rigorous \u003cstrong\u003eheat treatment to improve its mechanical characteristics,\u003c\/strong\u003e the Athena cylinder ensures \u003cstrong\u003emaximum resistance\u003c\/strong\u003e even at the highest temperatures. The liner is designed to ensure an \u003cstrong\u003eexceptionally smooth surface\u003c\/strong\u003e, which will last a lifetime, thanks to a special coating consisting of nickel and silicon carbides.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFORGED PISTON WITH SELF-LUBRICATING AND ANTI-SEIZING COATING\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned by Athena engineers, which surpasses the original design, exceeding all bench tests, \u003cspan style=\"color: windowtext;\"\u003eresulting in boosted \u003c\/span\u003eperformance and a higher compression ratio. The Athena piston ensures maximum power both at low\/medium and high engine revs.\u003c\/p\u003e\u003cp\u003eManufactured using reverse extrusion with cutting-edge technologies, this \u003cstrong\u003eforged piston \u003c\/strong\u003eis treated with a \u003cstrong\u003emolybdenum disulfide \u003c\/strong\u003ecoating, which further \u003cstrong\u003ereduce\u003c\/strong\u003e \u003cstrong\u003efriction\u003c\/strong\u003e while the flawless surface ensures an \u003cstrong\u003eideal\u003c\/strong\u003e \u003cstrong\u003eflame distribution\u003c\/strong\u003e\u003cs style=\"color: red;\"\u003e.\u003c\/s\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003erings\u003c\/strong\u003e are produced\u003cstrong\u003e in Japan\u003c\/strong\u003e with wear-resistant coatings to increase the retention and resistance, whereas the \u003cstrong\u003episton pin\u003c\/strong\u003e is made of high-quality \u003cstrong\u003esteel alloy\u003c\/strong\u003e and is processed to obtain maximum hardness.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMADE IN ITALY GASKET KIT\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUpon carefully selecting raw materials, implementing \u003cstrong\u003einnovative production technologies, undergoing extensive \u003c\/strong\u003etests during the design stage, and executing \u003cstrong\u003estrict quality controls\u003c\/strong\u003e, Athena has been developing and producing gasket kits that guarantee the highest quality standards for over 40 years.\u003c\/p\u003e\u003cp\u003eThe kit contains the gaskets needed to install the cylinder kit, including the cylinder head and base gasket, redesigned by Athena technicians to adapt to the new oil passages of the Yamaha cylinder.\u003c\/p\u003e\u003cp\u003eThe MLS (\u003cem\u003eMulti-Layer Steel\u003c\/em\u003e) cylinder head gasket, which undergoes extreme thermal and mechanical stress, has 3 layers: the outer layers are made of a rubber-coated steel, while the central one is made of AISI301 stainless steel to \u003cstrong\u003eresist high levels of compression\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThe rubber-coated steel base gasket\u003cspan style=\"color: red;\"\u003e \u003c\/span\u003ehas silicon beading on its surface to increase the seal towards the combustion chamber, resulting in no leakage.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003eCAUTION! All Athena products must be used in compliance with the specific national regulations of the member state where it is being marketed or sold. Athena declines all responsibility for any improper use.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cstrong\u003e\u003cp\u003eDescription:\u003c\/p\u003e\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003eSame reliability as the original components, better torque and higher horse power\u003c\/li\u003e\n\u003cli\u003eMaximum durability and smoothness guaranteed by a special nickel and silicon treatment on the cylinder liner\u003c\/li\u003e\n\u003cli\u003eForged piston with self-lubricating and anti-seizing coating\u003c\/li\u003e\n\u003cli\u003eMade in Italy gaskets developed with the most advanced technologies to ensure maximum tightness even at high temperatures and pressures\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eBrand: \u003c\/strong\u003eAthena\u003cbr\u003e\u003cstrong\u003ePart Number: \u003c\/strong\u003eP400485100091\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eYamaha YZ450F 2020-2022\u003c\/li\u003e\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":45159783530575,"sku":"P400485100091-ATHENA-0426-ATH","price":662.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/7120\/7759\/files\/P400485100091_bd7a59d4-3718-4991-b7b3-dbdc857bf805.jpg?v=1777656882","url":"https:\/\/lionparts.com\/products\/athena-cylinder-kit-stock-bore-for-yamaha-yz450f-2020-2022-p400485100091","provider":"Lionparts Powersports","version":"1.0","type":"link"}