Manufactured by Namura HyperDryve Series piston Kit Includes piston, rings, pin, clips you get exactly what is pictured The HyperDryve line of pistons is composed of a space-age hypereutectic aluminum alloy developed by NASA. Engineered to maintain its high tensile strength up to 700 F 370 C , 50% higher than a conventional cast piston, this gives HyperDryve pistons the strength to perform under operating conditions normally reserved for forged pistons. Piston skirts are Molybdenium Teflon coated to minimize resistance/wear and provide extended life. Also allows for smoother start-ups break-ins. Piston dome is anodized for superior heat resistance and longer lifespan Kit is for standard bore size 76.00mm Size B piston is 75.97mm Made in Taiwan Fits 2005 KTM 250 SXF 2006 KTM 250 SXF 2007 KTM 250 SXF 2007 KTM 250 XC-F 2007 KTM 250 XCF-W 2008 KTM 250 SXF 2008 KTM 250 XC-F 2008 KTM 250 XCF-W 2009 KTM 250 SXF 2009 KTM 250 XC-F 2009 KTM 250 XCF-W 2010 KTM 250 SXF 2010 KTM 250 XCF-W 2011 KTM 250 SXF 2011 KTM 250 XCF-W 2012 KTM 250 SXF 2012 KTM 250 XC-F 2012 KTM 250 XCF-W 2013 Husaberg FE250 13.2 1 Compression Ratio 2013 KTM 250 XC-F 2013 KTM 250 XCF-W