Description

Race Spec (RS) Rear Sprockets feature our revolutionary Angled Mud Groove. This exclusive design creates a self-cleaning effect during operation, shedding away mud that would otherwise lead to horsepower loss and sprocket wear. With their precise CNC machining and unique layout, these grooves also allow an increase in tooth surface area of up to 40% over competing sprockets. As a result, contact with the chain is significantly improved, leading to a marked increase in sprocket life over other brands. That's the ProTaper difference.

Specifications

Compatibility

  • 2001-2009 Yamaha WR250F Base --.249cc
  • 2011 Yamaha WR250F Base --.249cc
  • 2016-2019 Yamaha WR250F Base --.249cc
  • 2012-2013 Yamaha WR250F Base --.250cc
  • 2015 Yamaha WR250F Base --.250cc
  • 2020-2023 Yamaha WR250F Base --.250cc
  • 1999-2000 Yamaha WR400F Base --.399cc
  • 2001-2002 Yamaha WR426F Base --.426cc
  • 2003-2009 Yamaha WR450F Base --.449cc
  • 2011-2018 Yamaha WR450F Base --.449cc
  • 2019-2023 Yamaha WR450F Base --.450cc
  • 1999-2016 Yamaha YZ125 Base --.124cc
  • 2017-2023 Yamaha YZ125 Base --.125cc
  • 2020-2023 Yamaha YZ125X Base --.125cc
  • 1999-2023 Yamaha YZ250 Base --.249cc
  • 2001-2015 Yamaha YZ250F Base --.249cc
  • 2016-2023 Yamaha YZ250F Base --.250cc
  • 2016 Yamaha YZ250FX Base --.249cc
  • 2015 Yamaha YZ250FX Base --.250cc
  • 2017-2023 Yamaha YZ250FX Base --.250cc
  • 2016-2023 Yamaha YZ250X Base --.249cc
  • 1999 Yamaha YZ400F Base --.398cc
  • 2000-2002 Yamaha YZ426F Base --.426cc
  • 2003-2013 Yamaha YZ450F Base --.449cc
  • 2016-2021 Yamaha YZ450F Base --.449cc
  • 2014-2015 Yamaha YZ450F Base --.450cc
  • 2022-2023 Yamaha YZ450F Base --.450cc
  • 2016-2021 Yamaha YZ450FX Base --.449cc
  • 2022-2023 Yamaha YZ450FX Base --.450cc

Race Spec (RS) Rear Sprockets feature our revolutionary Angled Mud Groove. This exclusive design creates a self-cleaning effect during operation, shedding away mud that would otherwise lead to horsepower loss and sprocket wear. With their precise CNC machining and unique layout, these grooves also allow an increase in tooth surface area of up to 40% over competing sprockets. As a result, contact with the chain is significantly improved, leading to a marked increase in sprocket life over other brands. That's the ProTaper difference.

  • 2001-2009 Yamaha WR250F Base --.249cc
  • 2011 Yamaha WR250F Base --.249cc
  • 2016-2019 Yamaha WR250F Base --.249cc
  • 2012-2013 Yamaha WR250F Base --.250cc
  • 2015 Yamaha WR250F Base --.250cc
  • 2020-2023 Yamaha WR250F Base --.250cc
  • 1999-2000 Yamaha WR400F Base --.399cc
  • 2001-2002 Yamaha WR426F Base --.426cc
  • 2003-2009 Yamaha WR450F Base --.449cc
  • 2011-2018 Yamaha WR450F Base --.449cc
  • 2019-2023 Yamaha WR450F Base --.450cc
  • 1999-2016 Yamaha YZ125 Base --.124cc
  • 2017-2023 Yamaha YZ125 Base --.125cc
  • 2020-2023 Yamaha YZ125X Base --.125cc
  • 1999-2023 Yamaha YZ250 Base --.249cc
  • 2001-2015 Yamaha YZ250F Base --.249cc
  • 2016-2023 Yamaha YZ250F Base --.250cc
  • 2016 Yamaha YZ250FX Base --.249cc
  • 2015 Yamaha YZ250FX Base --.250cc
  • 2017-2023 Yamaha YZ250FX Base --.250cc
  • 2016-2023 Yamaha YZ250X Base --.249cc
  • 1999 Yamaha YZ400F Base --.398cc
  • 2000-2002 Yamaha YZ426F Base --.426cc
  • 2003-2013 Yamaha YZ450F Base --.449cc
  • 2016-2021 Yamaha YZ450F Base --.449cc
  • 2014-2015 Yamaha YZ450F Base --.450cc
  • 2022-2023 Yamaha YZ450F Base --.450cc
  • 2016-2021 Yamaha YZ450FX Base --.449cc
  • 2022-2023 Yamaha YZ450FX Base --.450cc

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