{"product_id":"piston-kit-ktm-520-525-exc-sx-wossner-8637da-ktm-00-09-hc-59030007000","title":"PISTON KIT KTM 520 525 EXC SX, WOSSNER 8637DA KTM 00-09 HC 59030007000","description":"Wossner high-compression forged piston kit designed for KTM SX-EXC520 (2000-2002), SX-EXC525 Racing (2003-2007), and Beta Motor RR525 (2005-2009) 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. Manufactured in Germany.\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eHigh-compression forged piston for increased performance\u003c\/li\u003e\n\t\u003cli\u003eOptimized heat transfer for efficient combustion chamber performance\u003c\/li\u003e\n\t\u003cli\u003eElliptical design for even thrust load distribution and reduced piston collapse\u003c\/li\u003e\n\t\u003cli\u003eManufactured in Germany\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eBore Size: 95.00mm\u003c\/li\u003e\n\t\u003cli\u003eActual Bore Diameter: 94.95mm\u003c\/li\u003e\n\t\u003cli\u003eDisplacement: 510 cm³\u003c\/li\u003e\n\t\u003cli\u003eStroke: 72.00mm\u003c\/li\u003e\n\t\u003cli\u003eClearance: 0.05mm\u003c\/li\u003e\n\t\u003cli\u003eWossner Compression Ratio: 12.50:1\u003c\/li\u003e\n\t\u003cli\u003eOEM Compression Ratio: 11.00:1\u003c\/li\u003e\n\t\u003cli\u003eDome Volume: +4.60 cm³\u003c\/li\u003e\n\t\u003cli\u003eCompression Height: 23.50mm\u003c\/li\u003e\n\t\u003cli\u003eLock Part Number: CW20\u003c\/li\u003e\n\t\u003cli\u003ePin Part Number: WP029\u003c\/li\u003e\n\t\u003cli\u003eRing Set Part Number: 950ADS-2\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e59030007000\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eKTM EXC520 Pro Series (2000-2002)\u003c\/li\u003e\n\t\u003cli\u003eKTM SX520 Pro Series (2000-2002)\u003c\/li\u003e\n\t\u003cli\u003eKTM EXC525 Racing Pro Series (2003-2007)\u003c\/li\u003e\n\t\u003cli\u003eKTM SX525 Racing Pro Series (2003-2007)\u003c\/li\u003e\n\t\u003cli\u003eKTM EXC-G525 Racing Pro Series (2003-2006)\u003c\/li\u003e\n\t\u003cli\u003eKTM SM-R525 Pro Series (2004-2005)\u003c\/li\u003e\n\t\u003cli\u003eKTM EXC525 Factory Racing Pro Series (2007)\u003c\/li\u003e\n\t\u003cli\u003eBeta Motor RR525 (2005-2009)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":50689772880138,"sku":"56-W216+00A.WO","price":220.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/0094\/6954\/files\/stock53989_1.jpg?v=1738241718","url":"https:\/\/store.phoenixmotos.com\/products\/piston-kit-ktm-520-525-exc-sx-wossner-8637da-ktm-00-09-hc-59030007000","provider":"Phoenix Motos","version":"1.0","type":"link"}