{"product_id":"piston-kit-05-18-ktm-250-66-40-wossner-8169da-sx-exc-54830007300","title":"PISTON KIT 05-18 KTM 250 66.40, WOSSNER 8169DA SX, EXC, 54830007300","description":"\u003cp\u003eWossner forged piston kit designed for KTM SX250 (2005-2018), EXC250 (2006-2018), Freeride 250R (2014-2020), Husqvarna TC250 (2014-2015), and Betamotor RR250 (2013-2015) models. Engineered for superior strength and optimal heat transfer, these pistons feature an elliptical design to ensure uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Includes a hard Teflon skirt coating for an optimal fit and improved conformability to the cylinder bore.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\t\u003cli\u003eForged piston for increased strength and durability\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eOptimized heat transfer for efficient combustion chamber performance\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eElliptical design for even thrust load distribution and reduced piston collapse\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eHard Teflon skirt coating for improved fit and wear resistance\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\t\u003cli\u003eBore Size: 66.40mm\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eActual Bore Diameter: 66.34mm\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eDisplacement: 249 cm³\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eStroke: 72.00mm\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eClearance: 0.06mm\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eWossner Compression Ratio: 2-stroke\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eOEM Compression Ratio: 2-stroke\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eCompression Height: 38.00mm\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eLock Part Number: CW18\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003ePin Part Number: WP033\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eRing Set Part Number: RSB6640 x 2\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eRod Part Number: P2023\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\t\u003cli\u003e54830007300 I\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e54830007300\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e09104861\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e856M06640\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\t\u003cli\u003eKTM SX250 (2005-2018)\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eKTM EXC250 (2006-2018)\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eKTM Freeride 250R (2014-2020)\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eHusqvarna TC250 (2014-2015)\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eBetamotor RR250 (2013-2015)\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e","brand":"ORO2U","offers":[{"title":"Default Title","offer_id":57151063818613,"sku":"56-W214.A.WO","price":159.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5011\/6136\/files\/stock53979_1.jpg?v=1778373988","url":"https:\/\/www.smxoffroad.com\/products\/piston-kit-05-18-ktm-250-66-40-wossner-8169da-sx-exc-54830007300","provider":"SMXOFFROAD Ltd","version":"1.0","type":"link"}