MSR 520 Ironman Rear Sprocket

    MSR 520 Ironman Rear Sprocket

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    Rating 5.00 of 5 (3 Reviews)
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    Product Information

    MSR Racing 520 Ironman Rear Sprocket
    • The optimum combination of strength, weight, and durability
    • Rear sprockets made from ultra hard, heat treated cro-moly steel, no more than 10oz. heavier than aluminum
    • Front sprocket sold separately
    • Rear sprocket guaranteed for 1 year against wear ( product registration required )
    Click Here For Ironman Front Countershaft Sprocket
    • Item # 21295

    FitmentView All

    Honda Models

    • CR125R: 1986 - 2007
    • CR250R: 1986 - 2007
    • CR500R: 1986 - 2001
    • CRF150F: 2003 - 2009, 2012
    • CRF230F: 2005 - 2009, 2012
    • CRF250R: 2004 - 2014
    • CRF250X: 2004 - 2009, 2012 - 2013
    • CRF450R: 2002 - 2014
    • CRF450X: 2005 - 2009, 2012 - 2014
    • XR200R: 1985, 1987, 1990, 1994, 2000, 2002
    • XR250R: 1986 - 2004
    • XR400R: 1996 - 2004
    • XR650R: 2000 - 2007

    Kawasaki Models

    • KDX200: 1984 - 2006
    • KDX220: 1997 - 2005
    • KDX250: 1991 - 1994
    • KLR650: 1999 - 2007
    • KLX250R: 1994 - 1996
    • KLX250S: 2006 - 2007, 2009 - 2010
    • KLX300: 1997 - 2005, 2007
    • KLX300R: 2005 - 2007
    • KLX400: 2003
    • KLX400S: 2003
    • KLX450R: 2008 - 2009
    • KLX650R: 1993 - 1996
    • KX125: 1986 - 2005
    • KX250: 1986 - 2007
    • KX250F: 2004 - 2014
    • KX450F: 2006 - 2014
    • KX500: 1986 - 2004

    KTM Models

    • 125 EXC: 1991 - 2007
    • 125 MX: 1991
    • 125 SX: 1992 - 2009, 2011 - 2012, 2014
    • 144 SX: 2007 - 2008
    • 150 SX: 2009 - 2012, 2014
    • 150 XC: 2010 - 2012, 2014
    • 200 EXC: 1998 - 2005, 2010 - 2011
    • 200 MXC: 1998 - 2003
    • 200 SX: 1998 - 2004
    • 200 XC: 2006 - 2009
    • 200 XC-W: 2006 - 2011, 2014
    • 250 DXC: 1991 - 1992
    • 250 EXC: 1991 - 2005, 2010 - 2011
    • 250 MX: 1990 - 1991
    • 250 MXC: 1998 - 2001
    • 250 SX: 1992 - 2012, 2014
    • 250 SX-F: 2005 - 2012, 2014
    • 250 TXC: 1992
    • 250 XC: 2006 - 2011, 2014
    • 250 XC-F: 2008 - 2009, 2011, 2014
    • 250 XCF-W: 2007 - 2010, 2014
    • 250 XCF-W Six Days: 2011
    • 250 XC-W: 2006 - 2011, 2014
    • 300 DXC: 1990 - 1992
    • 300 EXC: 1990 - 2006, 2010 - 2011
    • 300 MX: 1991 - 1992
    • 300 MXC: 1993 - 2005
    • 300 SX: 1992
    • 300 TXC: 1991 - 1992
    • 300 XC: 2006 - 2011, 2014
    • 300 XC-W: 2006 - 2011, 2014
    • 350 EXC: 1990
    • 350 EXC-F: 2012, 2014
    • 350 SX-F: 2011 - 2012, 2014
    • 350 XC-F: 2011, 2014
    • 350 XCF-W: 2014
    • 360 EXC: 1996 - 1997
    • 360 MXC: 1996 - 1997
    • 360 SX: 1996 - 1997
    • 380 EXC: 1998 - 2002
    • 380 MXC: 1998 - 2001
    • 380 SX: 1998 - 2002
    • 400 EXC: 1996, 2000 - 2002, 2004 - 2006
    • 400 EXC-G Racing: 2007
    • 400 LC4: 1993 - 1995, 1997 - 1998, 2000
    • 400 MXC: 2001 - 2002
    • 400 RXC: 1996 - 1998
    • 400 SX: 1998, 2000 - 2002
    • 400 XC-W: 2009 - 2010
    • 440 EXC: 1994 - 1995
    • 440 MXC: 1994 - 1995
    • 450 EXC: 2003 - 2009
    • 450 EXC-G Racing: 2007
    • 450 MXC: 2003 - 2005
    • 450 SMC: 2004
    • 450 SMR: 2004 - 2006
    • 450 SX: 2003 - 2007
    • 450 SX-F: 2008 - 2012, 2014
    • 450 XC: 2007
    • 450 XC-F: 2008 - 2009, 2014
    • 450 XC-G Racing: 2007
    • 450 XC-W: 2012, 2014
    • 450 XC-W Racing: 2008 - 2009
    • 500 EXC: 2012, 2014
    • 500 MX: 1991
    • 500 SX: 1992
    • 500 XC-W: 2014
    • 505 SX-F: 2007 - 2008
    • 505 XC-F: 2008 - 2009
    • 520 EXC: 2000 - 2002
    • 520 MXC: 2001 - 2002
    • 520 SX: 2000 - 2002
    • 525 EXC: 2003 - 2007
    • 525 EXC-G Racing: 2007
    • 525 MXC: 2003 - 2005
    • 525 SMC: 2004
    • 525 SMR: 2004 - 2005
    • 525 SX: 2003 - 2006
    • 525 SX Racing: 2005
    • 525 XC: 2006 - 2007
    • 525 XC-G Racing: 2007
    • 530 EXC: 2009 - 2011
    • 530 EXC-R: 2008
    • 530 XC-W Racing: 2008 - 2009
    • 550 DXC: 1992
    • 550 MXC: 1993 - 1996
    • 600 LC4: 1991 - 1993
    • 600 MX: 1990
    • 620 Duke: 1997
    • 620 LC4: 1997 - 1998
    • 660 SMC: 2004
    • 690 Supermoto: 2007 - 2008

    Suzuki Models

    • DR350: 1990 - 1996, 1998
    • DR350SE: 1996 - 1997
    • DR-Z400: 2000 - 2007
    • DR-Z400E: 2000 - 2007
    • DR-Z400S: 2000 - 2009, 2011 - 2014
    • DR-Z400SM: 2005 - 2009, 2013 - 2014
    • RM125: 1986 - 2007
    • RM250: 1987 - 2008
    • RMX250: 1989 - 1998
    • RM-Z250: 2004 - 2012, 2014
    • RM-Z450: 2005 - 2012, 2014

    Yamaha Models

    • WR250F: 2001 - 2009, 2011 - 2012
    • WR400F: 1999 - 2000
    • WR426F: 2001 - 2002
    • WR450F: 2003 - 2009, 2011 - 2012, 2014
    • YZ125: 1999 - 2012, 2014
    • YZ250: 1999 - 2012, 2014
    • YZ250F: 2001 - 2012, 2014
    • YZ400F: 1998 - 1999
    • YZ426F: 2000 - 2002

    Product Reviews Showing All 3 Reviews

    Overall Rating: 5.00 of 5

    (3 Reviews)
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    What Other Riders Are Saying...

    Fit

    Quality

    Installation

    Recommend

    Excellent Sprocket

    These sprockets are very durable and lightweight for the strength they provide. Excellent sprocket and lasts approximately 1 year.

    Stan - January 03, 2014

    (McKinney, TX)

    Fit

    Quality

    Installation

    Recommend

    Best Sprocket Out There

    This is the second time I have bought this. Paired with a DID VT2 on a CRF450, it is still not worn out. The chain after 130 hours is finally at its limit. I am replacing the sprocket only because I am also replacing the chain. It is almost as light as a aluminum and lasts three times as long. I am sold. Won't buy any other brand.

    will - March 14, 2013

    (San Antonio, TX)

    Fit

    Quality

    Installation

    Recommend

    excellent sprocket

    I have been using this sprocket for several years now. It is by far the best and longest lasting sprocket that I have ever used. It is also light weight. The price is steep but it lasts so long that makes up for it.

    Alan S - June 14, 2010

    (New Johnsonville, TN)
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