Detailed Product Fitment

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,...

DDC Racing Rear Sprockets for Kawasaki are part number GB1 followed by the number of teeth. For example, a 49 tooth Kawasaki sprocket would be GB1-49. All GB1 sprockets fit mostly everything mean and green all the way back to the era of the first Mario Brothers video game: (1983- 2017) (*Note: not all model years available in the USA) KX 125 model years: 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 KDX 200 model years: 1983, 1984, 1985, 1986, 1987, 1988, 1989,...

DDC Racing Rear Sprockets for KTM are part number OB1 followed by the number of teeth. For example, a 48 tooth KTM sprocket would be part number OB1-48. All OB1 rear sprocket fit basically everything orange from 1991 to current, however we have compiled a crazy detailed list of the model bikes our OB1 sprocket fits. Why you ask? Because search engines like ridiculous amounts of information, plus its crazy to see how many different models KTM has manufactured. We have also listed the stock gearing for each year and model bike, or at least to the best of our knowledge. (please note: not all model year...

DDC Racing Rear Sprockets for Honda are part number RB1 followed by the number of teeth. For example, a 48 tooth Honda sprocket would be part number RB1-48. Our RB1 rear sprocket fit the following bikes: Honda CRF450R and CRF450X all model years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 CRF250R and CRF250X all models years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 (*Note: Does not fit "L" models) Honda XR 400 all model years: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,...