Detailed Product Fitment — Yamaha Fitment Detail

DDC Racing Rear Sprockets for Yamaha are part number BB1 followed by the number of teeth. For example, a 51 tooth Yamaha sprocket would be part number BB1-51. BB1 sprockets fit all full size Yamaha dirt bike from 1999 to present. YZ125 model years: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 YZ250 & YZ250X model years: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 20154, 2015, 2016, 2017, 2018 YZ250F, YZ250FX & WR250F all model years: 2001, 2002, 2003, 2004,...