Dirt Tricks Chromoly Steel and Zirconium Rear Sprocket for Honda CR500R and CRF450RX – 51 Tooth, 520 Pitch

The Dirt Tricks CR-51-Z-C rear sprocket is engineered for durability and high performance, specifically designed to withstand the rigors of off-road riding. Crafted from premium chromoly steel and featuring a revolutionary zirconium coating, this sprocket delivers enhanced strength, reduced friction, and increased longevity for your motorcycle. Its lightweight construction rivals aluminum, making it an excellent choice for riders seeking durability without adding unnecessary weight.

Designed by Dirt Tricks president and engineer Greg Burns, the sprocket benefits from aerospace steel technology, heat treatment, and finite element analysis to ensure optimal stress distribution and durability. The minimalist design not only reduces weight but also provides a sleek appearance, complemented by the distinctive Diamond Black and Chromatic finishes. The zirconium coating on these sprockets reduces friction by up to 50%, which translates into smoother operation, less heat buildup, and improved overall efficiency during demanding rides.

This rear sprocket is compatible with a range of Honda models, including the 2017 Honda CRF450RX and various Honda CR500R years from 1984 through 2001. It is engineered to be 2.5 times stronger than stainless steel, offering exceptional toughness and long-lasting performance. Backed by a one-year guarantee, if the sprocket wears out within this period, Dirt Tricks will replace it, giving you peace of mind during your off-road adventures. Whether you’re racing or trail riding, this sprocket offers a reliable and durable upgrade that enhances your motorcycle’s drivetrain efficiency and longevity.

Features:

• Designed and patented by Dirt Tricks engineer Greg Burns using aerospace steel, heat treatments, and FEA stress analysis

• Built to last an entire season of hard riding with weight comparable to aluminum

• Available in Diamond Black and Chromatic finishes with revolutionary weight and color improvements

• Zirconium coating reduces friction by up to 50%, increases durability, and offers a sharp look

• Constructed from chromoly steel and zirconium for a strength 2.5 times that of stainless steel

• Minimalist design offers a sleek appearance and lightweight profile

• Compatible with 2017 Honda CRF450RX and Honda CR500R models from 1984 to 2001

• Backed by a one-year replacement guarantee for wear or failure

Fits,
Honda CR125R 1983
Honda CR125R 1984
Honda CR125R 1985
Honda CR125R 1986
Honda CR125R 1987
Honda CR125R 1988
Honda CR125R 1989
Honda CR125R 1990
Honda CR125R 1991
Honda CR125R 1992
Honda CR125R 1993
Honda CR125R 1994
Honda CR125R 1995
Honda CR125R 1996
Honda CR125R 1997
Honda CR125R 1998
Honda CR125R 1999
Honda CR125R 2000
Honda CR125R 2001
Honda CR125R 2002
Honda CR125R 2003
Honda CR125R 2004
Honda CR125R 2005
Honda CR125R 2006
Honda CR125R 2007
Honda CR250R 1991
Honda CR250R 1992
Honda CR250R 2001
Honda CR250R 1984
Honda CR250R 1985
Honda CR250R 1986
Honda CR250R 1987
Honda CR250R 1988
Honda CR250R 1989
Honda CR250R 1990
Honda CR250R 1993
Honda CR250R 1994
Honda CR250R 1995
Honda CR250R 1996
Honda CR250R 1997
Honda CR250R 1998
Honda CR250R 1999
Honda CR250R 2000
Honda CR250R 2002
Honda CR250R 2003
Honda CR250R 2004
Honda CR250R 2005
Honda CR250R 2006
Honda CR250R 2007
Honda CR500R 1990
Honda CR500R 1991
Honda CR500R 1995
Honda CR500R 1997
Honda CR500R 1999
Honda CR500R 2000
Honda CR500R 1984
Honda CR500R 1985
Honda CR500R 1986
Honda CR500R 1987
Honda CR500R 1988
Honda CR500R 1989
Honda CR500R 1992
Honda CR500R 1993
Honda CR500R 1994
Honda CR500R 1996
Honda CR500R 1998
Honda CR500R 2001
Honda CRF150F 2014
Honda CRF150F 2016
Honda CRF150F 2003
Honda CRF150F 2004
Honda CRF150F 2005
Honda CRF150F 2006
Honda CRF150F 2007
Honda CRF150F 2008
Honda CRF150F 2009
Honda CRF150F 2010
Honda CRF150F 2011
Honda CRF150F 2012
Honda CRF150F 2013
Honda CRF150F 2015
Honda CRF150F 2017
Honda CRF230F 2003
Honda CRF230F 2004
Honda CRF230F 2005
Honda CRF230F 2006
Honda CRF230F 2007
Honda CRF230F 2008
Honda CRF230F 2009
Honda CRF230F 2010
Honda CRF230F 2011
Honda CRF230F 2012
Honda CRF230F 2013
Honda CRF230F 2014
Honda CRF230F 2015
Honda CRF230F 2016
Honda CRF230F 2017
Honda CRF230F 2019
Honda CRF230F 2020
Honda CRF250R 2006
Honda CRF250R 2012
Honda CRF250R 2016
Honda CRF250R 2004
Honda CRF250R 2005
Honda CRF250R 2007
Honda CRF250R 2008
Honda CRF250R 2009
Honda CRF250R 2010
Honda CRF250R 2011
Honda CRF250R 2013
Honda CRF250R 2014
Honda CRF250R 2015
Honda CRF250R 2017
Honda CRF250R 2018
Honda CRF250R 2019
Honda CRF250R 2020
Honda CRF250R 2021
Honda CRF250R 2022
Honda CRF250R 2023
Honda CRF250R 2024
Honda CRF250RX 2019
Honda CRF250RX 2020
Honda CRF250RX 2021
Honda CRF250RX 2022
Honda CRF250RX 2023
Honda CRF250RX 2024
Honda CRF250X 2007
Honda CRF250X 2013
Honda CRF250X 2015
Honda CRF250X 2017
Honda CRF250X 2004
Honda CRF250X 2005
Honda CRF250X 2006
Honda CRF250X 2008
Honda CRF250X 2009
Honda CRF250X 2010
Honda CRF250X 2011
Honda CRF250X 2012
Honda CRF250X 2016
Honda CRF450R 2003
Honda CRF450R 2002
Honda CRF450R 2004
Honda CRF450R 2005
Honda CRF450R 2006
Honda CRF450R 2007
Honda CRF450R 2008
Honda CRF450R 2009
Honda CRF450R 2010
Honda CRF450R 2011
Honda CRF450R 2012
Honda CRF450R 2013
Honda CRF450R 2014
Honda CRF450R 2015
Honda CRF450R 2016
Honda CRF450R 2017
Honda CRF450R 2018
Honda CRF450R 2019
Honda CRF450R 2020
Honda CRF450R 2021
Honda CRF450R 2022
Honda CRF450R 2023
Honda CRF450R 2024
Honda CRF450R W.E. 2019
Honda CRF450R W.E. 2020
Honda CRF450R W.E. 2021
Honda CRF450R W.E. 2022
Honda CRF450R W.E. 2023
Honda CRF450R W.E. 2024
Honda CRF450RX 2017
Honda CRF450RX 2018
Honda CRF450RX 2019
Honda CRF450RX 2020
Honda CRF450RX 2021
Honda CRF450RX 2022
Honda CRF450RX 2023
Honda CRF450RX 2024
Honda CRF450X 2009
Honda CRF450X 2005
Honda CRF450X 2006
Honda CRF450X 2007
Honda CRF450X 2008
Honda CRF450X 2010
Honda CRF450X 2011
Honda CRF450X 2012
Honda CRF450X 2013
Honda CRF450X 2014
Honda CRF450X 2015
Honda CRF450X 2016
Honda CRF450X 2017
Honda CRF450X 2018
Honda CRF450X 2019
Honda CRF450X 2020
Honda CRF450X 2021
Honda CRF450X 2022
Honda CRF450X 2023
Honda CRF450X 2024
Honda XR250R 1996
Honda XR250R 1998
Honda XR250R 1997
Honda XR250R 1999
Honda XR250R 2000
Honda XR250R 2001
Honda XR250R 2002
Honda XR250R 2003
Honda XR250R 2004
Honda XR400R 1997
Honda XR400R 2001
Honda XR400R 2003
Honda XR400R 1996
Honda XR400R 1998
Honda XR400R 1999
Honda XR400R 2000
Honda XR400R 2002
Honda XR400R 2004
Honda XR650R 2000
Honda XR650R 2001
Honda XR650R 2002
Honda XR650R 2003
Honda XR650R 2004
Honda XR650R 2005
Honda XR650R 2006
Honda XR650R 2007