Renthal Twinring Rear Sprocket - 50 Tooth - Blue 1500-520-50Gpbu

• Inner ring is the same high strength Ultralight? 7075 T-6 aluminum used for the standard Renthal sprocket
• Outer ring is electro-less nickel coated steel for ultimate durability and is designed with the minimum amount of material to keep weight down
• The outer ring is expanded at 200??C and then fitted over the inner; this interference fit combined with the wave pattern ensures a permanent bond for the life of the chainwheel
• The flat socket head screws add additional strength to the chainwheel during side impacts and eliminates contact with the chain guide
• Self cleaning mud grooves between each tooth prevent dirt build upand reduce chainwheel wear and weight
• Will outlast a standard all aluminum sprocket by 3 times, yet is much lighter than an all steel rear sprocket

Yamaha -- YZ 125 -- (2015, 2012, 2014, 2013, 2016, 2001, 2006, 2004, 2009, 2003, 2007, 1999, 2005, 2000, 2010, 2011, 2008, 2002, 2017, 2018, 2020, 2019, 2021, 2022); Yamaha -- YZ 450 F -- (2013, 2012, 2015, 2014, 2016, 2004, 2005, 2006, 2010, 2009, 2003, 2008, 2007, 2011, 2017, 2020, 2018, 2019, 2021, 2022); Yamaha -- YZ 250 -- (2012, 2014, 2015, 2013, 2016, 2003, 2006, 2007, 2001, 2009, 2008, 2004, 1999, 2000, 2010, 2002, 2005, 2011, 2018, 2017, 2019, 2020, 2021, 2022); Yamaha -- YZ 250 F -- (2013, 2014, 2012, 2015, 2016, 2002, 2004, 2011, 2006, 2009, 2001, 2003, 2005, 2007, 2008, 2010, 2019, 2020, 2017, 2018, 2021, 2022); Yamaha -- WR 450 F -- (2003, 2005, 2004, 2007, 2009, 2011, 2012, 2014, 2008, 2015, 2006, 2013, 2010, 2016, 2017, 2018, 2019, 2020, 2021, 2022); Yamaha -- WR 250 F -- (2012, 2013, 2014, 2015, 2016, 2005, 2010, 2011, 2002, 2004, 2007, 2009, 2008, 2001, 2003, 2006, 2019, 2017, 2018, 2020, 2021, 2022); Yamaha -- YZ 426 F -- (2003, 2009, 2002, 2010, 2001, 2006, 2005, 2011, 2000, 2004, 2007, 2008); Yamaha -- WR 426 F -- (2009, 2002, 2001, 2008, 2006, 2011, 2000, 2004, 2010, 2003, 2005, 2007); Yamaha -- YZ 400 F -- (1999); Yamaha -- YZ 250 FX -- (2017, 2020, 2018, 2015, 2016, 2019, 2022, 2021); Yamaha -- YZ 450 FX -- (2016, 2017, 2019, 2018, 2020, 2021, 2022); Yamaha -- WR 400 F -- (2000, 1999); Yamaha -- YZ 250 X -- (2021, 2022); Yamaha -- YZ 125 X -- (2022, 2021)