{"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\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003c\/body\u003e","brand":"Cylinder Works","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=1783509076","url":"https:\/\/www.awmotorcycleparts.co.uk\/products\/ref-56-k100-81-k-w","provider":"AW Motorcycle Parts","version":"1.0","type":"link"}