FITTING OF THIS PRODUCT: According to the data provided by the manufacturer, this article is valid for the following brands, models and years: YAMAHA WR 450 FS (4T) 450: 2004-2004 YAMAHA YZ 426: 2000-2000 YAMAHA YZ 426 FM (4T) 426: 2000-2000 YAMAHA YZ 450: 2003-2005 YAMAHA YZ 450 FR/FS (4T) 450: 2003-2004 YAMAHA YZ 450 FT/FV (4T) 450: 2005-2006 YAMAHA YZF R1: 2004-2004 YAMAHA YZF-R1 1000: 2004-2004 YAMAHA YZF-R1 1000: 2004-2004 YAMAHA YZF-R1 1000: 2004-2004