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. Cast piston has super-high silicone content for additional strength Piston skirts are Molybdenium Teflon coated to minimize resistance/wear and provide extended life Piston dome is anodized for superior heat resistance and longer lifespan Kit is for standard bore size 96.00mm Size A piston is 95.96mm Made in Taiwan Fits 2006 Honda TRX450ER Sportrax 2006 Honda TRX450R Sportrax 2007 Honda TRX450ER Sportrax 2007 Honda TRX450R Sportrax 2008 Honda TRX450ER Sportrax 2008 Honda TRX450R Sportrax 2009 Honda TRX450ER Sportrax 2009 Honda TRX450R Sportrax 2012 Honda TRX450ER Sportrax 2013 Honda TRX450ER Sportrax 2014 Honda TRX450ER Sportrax