Moose Racing Rear Sprocket - 50 Tooth - Yamaha 1211-251-50-12

• The 7075 T651 aluminum we use for these sprockets receives an extra tempering which reduces distortion and provides optimal thickness vs. typically thinner 7075 T6 sprockets
• 100% machined, no stamping or grinding
• Optimal tooth thickness results in maximum tooth and chain contact

Yamaha -- YZ 450 F -- (2004, 2007, 2011, 2013, 2017, 2020, 2009, 2012, 2015, 2016, 2018, 2019, 2003, 2014, 2021, 2008, 2005, 2006, 2010); Yamaha -- YZ 450 FX -- (2016, 2017, 2018, 2020, 2019, 2021); Yamaha -- WR 450 F -- (2004, 2017, 2018, 2010, 2014, 2007, 2008, 2015, 2003, 2005, 2006, 2013, 2009, 2011, 2012, 2019, 2016, 2020, 2021); Yamaha -- YZ 125 -- (2009, 2014, 2019, 2004, 2002, 2015, 2016, 2020, 2001, 2006, 2003, 2007, 2012, 2000, 2010, 2011, 2018, 2021, 1999, 2005, 2013, 2017, 2008); Yamaha -- YZ 125 X -- (2020, 2021); Yamaha -- YZ 250 -- (2014, 2007, 2002, 2005, 2011, 2003, 2006, 2016, 2001, 2009, 2012, 2004, 2015, 2018, 2008, 2021, 1999, 2000, 2010, 2013, 2017, 2019, 2020); Yamaha -- YZ 250 X -- (2016, 2021, 2018, 2017, 2019, 2020); Yamaha -- YZ 250 F -- (2006, 2009, 2013, 2016, 2019, 2010, 2002, 2004, 2011, 2017, 2001, 2014, 2021, 2003, 2005, 2007, 2008, 2012, 2015, 2018, 2020); Yamaha -- WR 250 F -- (2005, 2010, 2011, 2012, 2001, 2003, 2006, 2019, 2004, 2007, 2009, 2016, 2017, 2008, 2015, 2020, 2021, 2013, 2018, 2002, 2014); Yamaha -- YZ 426 F -- (1999, 2002, 2001, 2000); Yamaha -- TT-R 230 -- (2006, 2014, 2021, 2007, 2010, 2012, 2013, 2009, 2011, 2008, 2018, 2016, 2019, 2005, 2015, 2017, 2020); Yamaha -- YZ 250 FX -- (2020, 2021, 2017, 2018, 2016, 2019); Yamaha -- YZ 400 F -- (2002, 1999, 2000, 2001); Yamaha -- WR 426 F -- (1999, 2000, 2001, 2002); Yamaha -- WR 400 F -- (2000, 2001, 1999, 2002)