The ProTaper Honda/Yamaha Rear Blue Sprocket with 51 Teeth is engineered to deliver enhanced performance and durability for a range of off-road motorcycles. Crafted from 7075-T6 heat-treated billet aluminum, this sprocket combines strength with lightweight design, ensuring reliable operation under demanding conditions. The precision CNC machining guarantees strict tolerances, providing a perfect fit and optimal contact with the chain for improved power transfer and sprocket longevity. Its distinctive angled mud groove design on both sides of every tooth creates a self-cleaning effect, shedding mud and debris during operation to prevent horsepower loss and sprocket wear, especially in muddy or challenging terrains. The deep penetrating anodized finish offers superior corrosion resistance and wear protection, maintaining the sprocket’s appearance and functionality over time.

Features:

• Angled mud groove design on both sides of every tooth for self-cleaning during operation

• CNC-machined from 7075-T6 heat-treated billet aluminum for maximum strength and lightweight performance

• Deep anodized finish provides corrosion resistance and enhances wear durability

• Countersinks automatically center sprocket to hub during installation, no hub guide required

• Increased tooth surface area by up to 40% for improved contact with the chain and extended sprocket life

• Made in the USA with strict quality standards

Fitment:
1982 Honda XR250R Base
1983 Honda XR350R Base
1983 Honda XR500R Base
1984 Honda XR200R Base
1984 Honda XR250R Base
1984 Honda XR350R Base
1984 Honda XR500R Base
1985 Honda XR200R Base
1985 Honda XR250R Base
1985 Honda XR350R Base
1985 Honda XR600R Base
1986 Honda XR200R Base
1986 Honda XR250R Base
1986 Honda XR600R Base
1987 Honda XR200R Base
1987 Honda XR250R Base
1987 Honda XR600R Base
1988 Honda XR200R Base
1988 Honda XR250R Base
1989 Honda XR200R Base
1989 Honda XR250R Base
1990 Honda XR200R Base
1991 Honda XR200R Base
1992 Honda XR200R Base
1993 Honda XR200R Base
1994 Honda XR200R Base
1995 Honda XR200R Base
1996 Honda XR200R Base
1997 Honda XR200R Base
1998 Honda XR200R Base
1999 Honda XR200R Base
1999 Yamaha WR400F Base
1999 Yamaha YZ125 Base
1999 Yamaha YZ250 Base
1999 Yamaha YZ400F Base
2000 Honda XR200R Base
2000 Yamaha WR400F Base
2000 Yamaha YZ125 Base
2000 Yamaha YZ250 Base
2000 Yamaha YZ426F Base
2001 Honda XR200R Base
2001 Yamaha WR250F Base
2001 Yamaha WR426F Base
2001 Yamaha YZ125 Base
2001 Yamaha YZ250 Base
2001 Yamaha YZ250F Base
2001 Yamaha YZ426F Base
2002 Honda XR200R Base
2002 Yamaha WR250F Base
2002 Yamaha WR426F Base
2002 Yamaha YZ125 Base
2002 Yamaha YZ250 Base
2002 Yamaha YZ250F Base
2002 Yamaha YZ426F Base
2003 Yamaha WR250F Base
2003 Yamaha WR450F Base
2003 Yamaha YZ125 Base
2003 Yamaha YZ250 Base
2003 Yamaha YZ250F Base
2003 Yamaha YZ450F Base
2004 Yamaha WR250F Base
2004 Yamaha WR450F Base
2004 Yamaha YZ125 Base
2004 Yamaha YZ250 Base
2004 Yamaha YZ250F Base
2004 Yamaha YZ450F Base
2005 Yamaha WR250F Base
2005 Yamaha WR450F Base
2005 Yamaha YZ125 Base
2005 Yamaha YZ250 Base
2005 Yamaha YZ250F Base
2005 Yamaha YZ450F Base
2006 Yamaha WR250F Base
2006 Yamaha WR450F Base
2006 Yamaha YZ125 Base
2006 Yamaha YZ250 Base
2006 Yamaha YZ250F Base
2006 Yamaha YZ450F Base
2007 Yamaha WR250F Base
2007 Yamaha WR450F Base
2007 Yamaha YZ125 Base
2007 Yamaha YZ250 Base
2007 Yamaha YZ250F Base
2007 Yamaha YZ450F Base
2008 Yamaha WR250F Base
2008 Yamaha WR450F Base
2008 Yamaha YZ125 Base
2008 Yamaha YZ250 Base
2008 Yamaha YZ250F Base
2008 Yamaha YZ450F Base
2009 Yamaha WR250F Base
2009 Yamaha WR450F Base
2009 Yamaha YZ125 Base
2009 Yamaha YZ250 Base
2009 Yamaha YZ250F Base
2009 Yamaha YZ450F Base
2010 Yamaha YZ125 Base
2010 Yamaha YZ250 Base
2010 Yamaha YZ250F Base
2010 Yamaha YZ450F Base
2011 Yamaha WR250F Base
2011 Yamaha WR450F Base
2011 Yamaha YZ125 Base
2011 Yamaha YZ250 Base
2011 Yamaha YZ250F Base
2011 Yamaha YZ450F Base
2012 Yamaha WR250F Base
2012 Yamaha WR450F Base
2012 Yamaha YZ125 Base
2012 Yamaha YZ250 Base
2012 Yamaha YZ250F Base
2012 Yamaha YZ450F Base
2013 Yamaha WR250F Base
2013 Yamaha WR450F Base
2013 Yamaha YZ125 Base
2013 Yamaha YZ250 Base
2013 Yamaha YZ250F Base
2013 Yamaha YZ450F Base
2014 Yamaha WR450F Base
2014 Yamaha YZ125 Base
2014 Yamaha YZ250 Base
2014 Yamaha YZ250F Base
2014 Yamaha YZ450F Base
2015 Yamaha WR250F Base
2015 Yamaha WR450F Base
2015 Yamaha YZ125 Base
2015 Yamaha YZ250 Base
2015 Yamaha YZ250F Base
2015 Yamaha YZ250FX Base
2015 Yamaha YZ450F Base
2016 Yamaha WR250F Base
2016 Yamaha WR450F Base
2016 Yamaha YZ125 Base
2016 Yamaha YZ250 Base
2016 Yamaha YZ250F Base
2016 Yamaha YZ250FX Base
2016 Yamaha YZ250X Base
2016 Yamaha YZ450F Base
2016 Yamaha YZ450FX Base
2017 Yamaha WR250F Base
2017 Yamaha WR450F Base
2017 Yamaha YZ125 Base
2017 Yamaha YZ250 Base
2017 Yamaha YZ250F Base
2017 Yamaha YZ250FX Base
2017 Yamaha YZ250X Base
2017 Yamaha YZ450F Base
2017 Yamaha YZ450FX Base
2018 Yamaha WR250F Base
2018 Yamaha WR450F Base
2018 Yamaha YZ125 Base
2018 Yamaha YZ250 Base
2018 Yamaha YZ250F Base
2018 Yamaha YZ250FX Base
2018 Yamaha YZ250X Base
2018 Yamaha YZ450F Base
2018 Yamaha YZ450FX Base
2019 Yamaha WR250F Base
2019 Yamaha WR450F Base
2019 Yamaha YZ125 Base
2019 Yamaha YZ250 Base
2019 Yamaha YZ250F Base
2019 Yamaha YZ250FX Base
2019 Yamaha YZ250X Base
2019 Yamaha YZ450F Base
2019 Yamaha YZ450FX Base
2020 Yamaha WR250F Base
2020 Yamaha WR450F Base
2020 Yamaha YZ125 Base
2020 Yamaha YZ125X Base
2020 Yamaha YZ250 Base
2020 Yamaha YZ250F Base
2020 Yamaha YZ250FX Base
2020 Yamaha YZ250X Base
2020 Yamaha YZ450F Base
2020 Yamaha YZ450FX Base
2021 Yamaha WR250F Base
2021 Yamaha WR450F Base
2021 Yamaha YZ125 Base
2021 Yamaha YZ125X Base
2021 Yamaha YZ250 Base
2021 Yamaha YZ250F Base
2021 Yamaha YZ250FX Base
2021 Yamaha YZ250X Base
2021 Yamaha YZ450F Base
2021 Yamaha YZ450FX Base
2022 Yamaha WR250F Base
2022 Yamaha WR450F Base
2022 Yamaha YZ125 Base
2022 Yamaha YZ125X Base
2022 Yamaha YZ250 Base
2022 Yamaha YZ250F Base
2022 Yamaha YZ250FX Base
2022 Yamaha YZ250X Base
2022 Yamaha YZ450F Base
2022 Yamaha YZ450FX Base
2023 Yamaha WR250F Base
2023 Yamaha WR450F Base
2023 Yamaha YZ125 Base
2023 Yamaha YZ125X Base
2023 Yamaha YZ250 Base
2023 Yamaha YZ250F Base
2023 Yamaha YZ250FX Base
2023 Yamaha YZ250X Base
2023 Yamaha YZ450F Base
2023 Yamaha YZ450FX Base
2024 Yamaha WR250F Base
2024 Yamaha WR450F Base
2024 Yamaha YZ125 Base
2024 Yamaha YZ125X Base
2024 Yamaha YZ250 Base
2024 Yamaha YZ250F Base
2024 Yamaha YZ250FX Base
2024 Yamaha YZ250X Base
2024 Yamaha YZ450F Base
2024 Yamaha YZ450FX Base