Manufactured by Kit Includes piston, rings, pin, clips (you get exactly what is pictured) 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 – 52.50mm Size B piston is 52.45mm Compatible with Kawasaki models below: 1995 KX100 1996 KX100 1997 KX100 1998 KX100 1999 KX100 2000 KX100 2001 KX100 2002 KX100 2003 KX100 2004 KX100 2005 KX100 2006 KX100 2007 KX100 2008 KX100 2009 KX100 2011 KX100 2012 KX100 2013 KX100 Compatible with Suzuki models below: 2003 RM100