MSR 520 Ironman Rear Sprocket

MSR 520 Ironman Rear Sprocket

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$107.99 You save $11.96 (10%)

Rating 5.00 of 5 (3 Reviews)
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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

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)

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

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)
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