{"product_id":"oro2u-56-k156-72-ckcw-d4159e96","title":"Cylinder Full Kit +5.60mm Big Bore 72.00mm Yamaha YZ 2T 250 1999 - 2025 Cylinder Works 21009-K01","description":"\u003cp\u003eCylinder Full Kit +5.60mm Big Bore 72.00mm Yamaha YZ 2T 250 1999 - 2025 Cylinder Works 21009-K01. Find the product specifications and compatibility information below.\u003c\/p\u003e\u003ch3\u003eProduct details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eProduct: Cylinder Full Kit +5.60mm Big Bore 72.00mm Yamaha YZ 2T 250 1999 - 2025 Cylinder Works 21009-K01\u003c\/li\u003e\n\u003cli\u003ePart number: 56-K156.72.CKCW\u003c\/li\u003e\n\u003cli\u003eBrand: Cylinder Works\u003c\/li\u003e\n\u003cli\u003eCylinder Works Big Bore Cylinder Kit is a complete top-end rebuild solution for Yamaha YZ 250 models, increasing displacement from 249cc to 295cc with a +5.6mm bore. This kit includes a high-quality nickel silicon carbide (NSC) electroplated cylinder for enhanced durability and reduced friction, along with a hand-matched Vertex big bore piston made from 2618 aluminum alloy for superior strength. Designed as a true bolt-on upgrade, this kit provides a noticeable power increase throughout the entire RPM range without requiring further engine modifications.\u003c\/li\u003e\n\u003cli\u003eComplete top-end rebuild kit for big bore applications\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder, cylinder head, power valve kit, piston kit, top-end gasket kit, and wrist pin bearing\u003c\/li\u003e\n\u003cli\u003eHand-matched Vertex big bore piston made from 2618 aluminum alloy for superior strength\u003c\/li\u003e\n\u003cli\u003eNickel silicon carbide (NSC) electroplated bore for tighter tolerances and lower friction\u003c\/li\u003e\n\u003cli\u003eProvides increased power across the entire RPM range\u003c\/li\u003e\n\u003cli\u003eOEM appearance at a lower cost\u003c\/li\u003e\n\u003cli\u003eTrue bolt-on installation with no additional modifications required\u003c\/li\u003e\n\u003cli\u003eCylinder Diameter: 72 mm\u003c\/li\u003e\n\u003cli\u003eCylinder Kit Type: Big Bore\u003c\/li\u003e\n\u003cli\u003eDisplacement: 295 cc\u003c\/li\u003e\n\u003cli\u003eEngine Type: 2-Cycle\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: Standard\u003c\/li\u003e\n\u003cli\u003eSize Over Standard: +5.60 mm\u003c\/li\u003e\n\u003cli\u003eUses Vertex Piston #24079B\u003c\/li\u003e\n\u003cli\u003eVehicle Fitments\u003c\/li\u003e\n\u003cli\u003eYamaha YZ 250 2T (1999-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eNo separate vehicle-fitment table record was supplied for this part. Check any application details, sizes and specifications above before ordering.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eWhy buy from FDY Performance?\u003c\/h3\u003e\u003cp\u003eFDY Performance is a UK motorcycle and ATV parts specialist. We help riders find parts with clear specifications, vehicle fitment information where available and support before ordering.\u003c\/p\u003e\u003ch3\u003eNeed help choosing the right part?\u003c\/h3\u003e\u003cp\u003eContact us with your bike make, model and year, plus the part number shown above, and we can help you check compatibility.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCall: \u003ca href=\"tel:+447765534854\"\u003e07765 534854\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmail: \u003ca href=\"mailto:fdy@fdyperformance.com\"\u003efdy@fdyperformance.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eWebsite: \u003ca href=\"https:\/\/www.fdyperformance.com\"\u003ewww.fdyperformance.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cylinder Works","offers":[{"title":"Default Title","offer_id":59664081092956,"sku":"56-K156.72.CKCW","price":934.42,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/6982\/0252\/files\/56-k156-72-ckcw-ow1.png?v=1793123250","url":"https:\/\/fdyperformance.com\/products\/oro2u-56-k156-72-ckcw-d4159e96","provider":"FDY performance Ltd","version":"1.0","type":"link"}