{"product_id":"ref-56-k100-81-k-w","title":"CYLINDER WORKS, CYLINDER KIT HONDA CRF250R 2004-2009, CRF250X 2004-2017, 81mm","description":"\u003cbody\u003e\n\n\n\n\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003eThe +3mm Big Bore Cylinder Kit (Part Number: 11001-K01) is designed to significantly enhance the performance of Honda CRF250R (2004–2009) and CRF250X (2004–2017) models. With an 81mm bore size, this kit increases the engine displacement to 269cc, delivering a 13.0:1 compression ratio. When used with the Hot Rods #4183 crankshaft, the displacement increases to 277cc. This kit requires case machining, and detailed instructions are included.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003e(+3mm Big Bore Kit) increases displacement to 269cc with a 13.0:1 compression ratio.\u003c\/li\u003e \t\u003cli\u003eCompatible with Vertex #23535 piston.\u003c\/li\u003e \t\u003cli\u003eAchieves 277cc when paired with Hot Rods #4183 crankshaft.\u003c\/li\u003e \t\u003cli\u003eRequires case machining (instructions provided).\u003c\/li\u003e \t\u003cli\u003eIncludes all necessary components for installation.\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003e(1) Cylinder\u003c\/li\u003e \t\u003cli\u003e(1) Piston\u003c\/li\u003e \t\u003cli\u003e(1) Wrist pin\u003c\/li\u003e \t\u003cli\u003e(2) Cir-clips\u003c\/li\u003e \t\u003cli\u003eGaskets\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eReplacement Parts:\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003e\n\u003cstrong\u003eReplacement Big Bore Cylinder:\u003c\/strong\u003e Order No. 140408\u003c\/li\u003e \t\u003cli\u003e\n\u003cstrong\u003eReplacement Big Bore Piston Kit:\u003c\/strong\u003e Order No. 131447S\u003c\/li\u003e \t\u003cli\u003e\n\u003cstrong\u003eReplacement Big Bore Piston Rings:\u003c\/strong\u003e Order No. 131447SR\u003c\/li\u003e \t\u003cli\u003e\n\u003cstrong\u003eReplacement Big Bore Gasket Kit:\u003c\/strong\u003e Order No. 263948\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eVehicle Compatibility:\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003e\n\u003cstrong\u003eHonda CRF250R:\u003c\/strong\u003e 2004–2009\u003c\/li\u003e \t\u003cli\u003e\n\u003cstrong\u003eHonda CRF250X:\u003c\/strong\u003e 2004–2017\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCross-Reference Part Numbers:\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003e422-11001K\u003c\/li\u003e \t\u003cli\u003e0931-0118\u003c\/li\u003e \t\u003cli\u003e733712\u003c\/li\u003e \t\u003cli\u003e2055\u003c\/li\u003e \t\u003cli\u003eHR11001K01\u003c\/li\u003e \t\u003cli\u003e77000-35\u003c\/li\u003e \t\u003cli\u003e12100-KRN-672\u003c\/li\u003e \t\u003cli\u003e12100-KRN-730\u003c\/li\u003e \t\u003cli\u003e12100-KRN-731\u003c\/li\u003e \t\u003cli\u003eWT400210100009\u003c\/li\u003e \t\u003cli\u003eP400210100009\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eCase machining is required for installation.\u003c\/li\u003e \u003c\/ul\u003e\n\u003cp\u003eMajority of our listings are for a direct replacement for your original part.\u003c\/p\u003e\n\u003cp\u003eOur parts are made of quality and are designed to meet or exceed the original OEM Standards.\u003c\/p\u003e\n\u003cp\u003eOur products are often a cost effective alternative to genuine OEM Parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note: \u003c\/strong\u003ethe models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003c\/body\u003e","brand":"AW Motorcycle Parts","offers":[{"title":"Default Title","offer_id":55594592076150,"sku":"REF 56-K100.81.K.W","price":649.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/7032\/3318\/files\/stock51500_1.jpg?v=1746743810","url":"https:\/\/n0jgtc-nz.myshopify.com\/products\/ref-56-k100-81-k-w","provider":"AW Motorcycle Parts","version":"1.0","type":"link"}