Chain

• CR 125R 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
• CR 250R 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
• CR 500R 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
• CRF 250R 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
• CRF 250X 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
• CRF 450R 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
• CRF 450X 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014

All feature heavier side plates for more strength and resistance to stretch. MXZ racing chains are made for the serious motocross racer with all components heat treated for high-performance durability; chromoly steel construction with seamless rollers and bushings, and oversized alloy pins for added strength.

RK MXZ Chain Features:

• Max. Engine Size: 500cc;
• Tensile Strength: 8,800;
• Wear Life Index: 300 (Wear life Index should be used as a comparison for probable wear life under identical circumstances.
• Think of it as a percent, with standard chains being 100).

RK racing chains have been the overwhelming choice of World Championship Teams for the past two decades.

They have benefited from their long-term OEM relationships with the major Japanese motorcycle manufacturers - RK has supplied original chains and chains for racing.