Available In
We just have too many good parts.
In order to narrow down the large list of parts below, we recommend that you select your fitment:
Race Spec (RS) Aluminum Rear Sprocket - Blue

ProTaper Race Spec (RS) Aluminum Rear Sprockets are precision CNC machined to the strictest tolerances from the highest quality alloy that has been specially formulated for off-road motorcycle sprockets. Laboratory designed by engineers, they achieve the perfect balance and optimization of key features like load distribution, reduction of un-sprung rotating mass, and tooth endurance. The result is a rear sprocket that is unparalleled in the market.


Part Number Price Add
033197 $69.99 Add To Quote
033199 $69.99 Add To Quote
033201 $69.99 Add To Quote
033203 $69.99 Add To Quote
033217 $69.99 Add To Quote
033219 $69.99 Add To Quote
033221 $69.99 Add To Quote
033223 $69.99 Add To Quote
033225 $69.99 Add To Quote
033227 $69.99 Add To Quote
Find A Dealer
  • 7075-T6 Heat Treated Aluminum
  • Precision CNC machined to strictest of tolerances
  • Deep penetrating anodized finish
  • Exclusive window pattern engineered for optimum balance of weight and strength
  • CNC machined edge chamfers and inlay for subsurface ProTaper sticker location
  • Countersinks to concentrically locate sprocket regardless of hub center guide
  • Exclusive “Angled Mud Groove” design on every tooth on both sides
  • Made in USA
The items on this page fit:

Part Number Model Year(s)
033197 Yamaha YZ80 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
033197 Yamaha YZ80 Big Wheel 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
033197 Yamaha YZ85 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033197 Yamaha YZ85 Big Wheel 2002, 2003, 2004, 2005, 2006, 2007
033199 Yamaha YZ80 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
033199 Yamaha YZ80 Big Wheel 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
033199 Yamaha YZ85 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033199 Yamaha YZ85 Big Wheel 2002, 2003, 2004, 2005, 2006, 2007
033201 Yamaha YZ80 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
033201 Yamaha YZ80 Big Wheel 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
033201 Yamaha YZ85 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033201 Yamaha YZ85 Big Wheel 2002, 2003, 2004, 2005, 2006, 2007
033203 Yamaha YZ80 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
033203 Yamaha YZ80 Big Wheel 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
033203 Yamaha YZ85 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033203 Yamaha YZ85 Big Wheel 2002, 2003, 2004, 2005, 2006, 2007
033217 Honda XR250R 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
033217 Yamaha WR250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033217 Yamaha WR400F 1999, 2000, 2001
033217 Yamaha WR426F 2000, 2001, 2002
033217 Yamaha WR450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
033217 Yamaha YZ125 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033217 Yamaha YZ250 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033217 Yamaha YZ250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033217 Yamaha YZ400F 1999
033217 Yamaha YZ426F 2000, 2001, 2002
033217 Yamaha YZ450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033219 Honda XR250R 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
033219 Yamaha WR250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033219 Yamaha WR400F 1999, 2000, 2001
033219 Yamaha WR426F 2000, 2001, 2002
033219 Yamaha WR450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
033219 Yamaha YZ125 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033219 Yamaha YZ250 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033219 Yamaha YZ250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033219 Yamaha YZ400F 1999
033219 Yamaha YZ426F 2000, 2001, 2002
033219 Yamaha YZ450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033221 Honda XR250R 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
033221 Yamaha WR250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033221 Yamaha WR400F 1999, 2000, 2001
033221 Yamaha WR426F 2000, 2001, 2002
033221 Yamaha WR450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
033221 Yamaha YZ125 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033221 Yamaha YZ250 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033221 Yamaha YZ250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033221 Yamaha YZ400F 1999
033221 Yamaha YZ426F 2000, 2001, 2002
033221 Yamaha YZ450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033223 Honda XR250R 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
033223 Yamaha WR250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033223 Yamaha WR400F 1999, 2000, 2001
033223 Yamaha WR426F 2000, 2001, 2002
033223 Yamaha WR450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
033223 Yamaha YZ125 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033223 Yamaha YZ250 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033223 Yamaha YZ250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033223 Yamaha YZ400F 1999
033223 Yamaha YZ426F 2000, 2001, 2002
033223 Yamaha YZ450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033225 Honda XR250R 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
033225 Yamaha WR250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033225 Yamaha WR400F 1999, 2000, 2001
033225 Yamaha WR426F 2000, 2001, 2002
033225 Yamaha WR450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
033225 Yamaha YZ125 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033225 Yamaha YZ250 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033225 Yamaha YZ250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033225 Yamaha YZ400F 1999
033225 Yamaha YZ426F 2000, 2001, 2002
033225 Yamaha YZ450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033227 Honda XR250R 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
033227 Yamaha WR250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033227 Yamaha WR400F 1999, 2000, 2001
033227 Yamaha WR426F 2000, 2001, 2002
033227 Yamaha WR450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
033227 Yamaha YZ125 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033227 Yamaha YZ250 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033227 Yamaha YZ250F 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
033227 Yamaha YZ400F 1999
033227 Yamaha YZ426F 2000, 2001, 2002
033227 Yamaha YZ450F 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018