BUYER must check chain length needed before ordering by counting the number of pins in their existing chain, including the master link. Any info provided by seller regarding stock length is to the best of our knowledge, but we are NOT responsible for chain that is ordered solely based on this information. Any return for different length chain will be at buyer's expense, including shipping both ways. PLEASE check BEFORE ordering. If you would like a different color, length or type of chain non-sealed or x-ring or different gearing, please contact us before ordering and we will direct you to a listing to purchase from if available. Included is 1 520 x 96 o-ring chain yellow 1 Master link clip style 1 14 tooth front sprocket 1 38 tooth rear sprocket All components are Factory Spec brand Chain has a tensile strength of 8200 pounds Sprockets are made of hardened steel and built to last O-ring style means it will last longer with less maintenance than conventional chains This brand new, o-ring chain sprocket kit fits the following models Stock gearing for these models is 14/38 with a 520x96 chain 2004 Yamaha YFZ450 Stock size 2005 Yamaha YFZ450 Stock size 2006 Yamaha YFZ450 Stock size 2007 Yamaha YFZ450 Stock size 2008 Yamaha YFZ450 Stock size 2009 Yamaha YFZ450 Stock size 2012 Yamaha YFZ450 Stock size 2013 Yamaha YFZ450 Stock size *** Will not fit YFZ450R or YFZ450X models***