Renthal 520 Ultralight Off-Road Rear Sprocket

    Renthal 520 Ultralight Off-Road Rear Sprocket

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    Rating 4.82 of 5 (18 Reviews)
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    Product Information

    Renthal 520 Ultralight Off-Road Rear Sprocket

    Renthal Ultralight rear chainwheels are manufactured to extremely tight tolerances from a special material developed to withstand the rigors of supercross, motocross and enduro racing.

    The 7075 T6 aluminum alloy rear chainwheels are 66% lighter than steel, yet incredibly durable. Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life.

    Renthal's combination of a very high strength base material and an exceptionally hardwearing surface result in significantly increased chainwheel life over other brands.

    Features:

    • Renthal Ultralight chainwheels are 66% lighter than steel
    • Precision CNC manufactured to extremely tight tolerances
    • High strength specially enhanced 7075 T6 aluminum alloy
    • Computer aided Ultralight design gives the maximum reduction of unsprung weight at the rear wheel, to give maximum power transfer
    • Self-cleaning mud grooves between every tooth on both sides prevent dirt build up

    Renthal Ultralight chainwheels are used by more factory motocross and supercross teams than any other chainwheel in the world, including:

    • Factory Honda
    • Factory Kawasaki
    • Pro-Circuit Kawasaki
    • Team Honda Martin Racing
    • Team Kawasaki Europe
    • Team Suzuki Europe
    • Factory KTM Europe
    • HRC Honda Japan
    • KHI Kawasaki Japan
    • Suzuki Japan

      **Closeouts are limited to stock on hand**
    • Item # 6574

    FitmentView All

    Beta Models

    • 350 RR: 2013
    • 400 RR: 2010 - 2013
    • 450 RR: 2010 - 2013
    • 498 RR: 2013

    BMW Models

    • G450X: 2008 - 2010

    Ducati Models

    • Monster 696: 2010

    Gas Gas Models

    • EC200: 2009

    Honda Models

    • ATC250R: 1986
    • CR125R: 1986 - 2007
    • CR250R: 1986 - 2007
    • CR500R: 1986 - 2001
    • CRF150F: 2003 - 2009, 2012 - 2014
    • CRF230F: 2005 - 2009, 2012 - 2014
    • CRF250R: 2004 - 2014
    • CRF250X: 2004 - 2009, 2012 - 2013
    • CRF450R: 2002 - 2014
    • CRF450X: 2005 - 2009, 2012 - 2014
    • TRX250R: 1986 - 1989
    • TRX250X: 1986 - 1988, 1991 - 1992, 2009, 2011 - 2012
    • TRX300EX: 1993 - 2009
    • TRX400EX: 1999 - 2009
    • TRX400X: 2009, 2012 - 2014
    • TRX450R: 2004 - 2009, 2012 - 2013
    • TRX450R (Electric Start): 2009
    • XR250R: 1986 - 2004
    • XR400R: 1996 - 2004
    • XR600R: 1991 - 2000
    • XR650L: 1993 - 2009, 2012
    • XR650R: 2000 - 2007

    Husaberg Models

    • FC550: 2005
    • FE350: 2013
    • FE450: 2009 - 2011
    • FE450E: 2007 - 2008
    • FE501: 2013
    • FE550E: 2007 - 2008
    • FE570: 2009 - 2010
    • FS450E: 2005 - 2006, 2008
    • FS650C: 2005 - 2008
    • FS650E: 2005 - 2008
    • FX450: 2010 - 2011
    • TE 250: 2013

    Husqvarna Models

    • CR125: 1998 - 2004, 2006 - 2009, 2012 - 2013
    • CR250: 1999 - 2002
    • FC 250: 2014
    • FC 450: 2014
    • FE 250: 2014
    • FE 501: 2014
    • SM610: 2009
    • SMR450: 2005 - 2008
    • SMR510: 2005 - 2008
    • SMR630: 2005
    • TC 125: 2014
    • TC250: 2002 - 2010, 2012, 2014
    • TC250R: 2013
    • TC450: 2002, 2004 - 2010
    • TC510: 2005 - 2009
    • TC570: 2001
    • TC610: 1998 - 2000
    • TE 300: 2014
    • TE 630: 2011
    • TE250: 2002, 2004 - 2010, 2012
    • TE310: 2009 - 2010, 2012 - 2013
    • TE400: 2001
    • TE410: 1998 - 1999
    • TE449: 2012 - 2013
    • TE450: 2004 - 2010
    • TE510: 2005 - 2010
    • TE511: 2012 - 2013
    • TE610: 1998 - 2000, 2002, 2007
    • TXC 250: 2008 - 2010, 2012
    • TXC 449: 2011
    • TXC 450: 2008 - 2010
    • TXC 510: 2008 - 2010
    • TXC511: 2012
    • WR125: 1998 - 2002, 2006 - 2007, 2009 - 2010, 2012 - 2013
    • WR250: 1992 - 1993, 1998 - 2002, 2006 - 2009
    • WR300: 2009 - 2010
    • WR360: 1998 - 2002

    Kawasaki Models

    • KDX200: 1984 - 2006
    • KDX220: 1997 - 2005
    • KDX250: 1991 - 1994
    • KFX400: 2003 - 2006
    • KFX450R: 2008 - 2010, 2014
    • KLX250R: 1994 - 1996
    • KLX250S: 2006 - 2007, 2009 - 2010, 2012 - 2014
    • KLX300: 1997 - 2005, 2007
    • KLX300R: 2005 - 2007
    • KLX400: 2003
    • KLX450R: 2008 - 2009
    • KLX650: 1993 - 1995
    • KLX650R: 1993 - 1996
    • KX125: 1986 - 2005
    • KX250: 1986 - 2007
    • KX250F: 2004 - 2014
    • KX450F: 2006 - 2014
    • KX500: 1984 - 2004
    • Ninja 250R: 1989 - 1990, 1992 - 2010, 2012
    • Ninja 300: 2013
    • Ninja 500R: 1994 - 2004

    KTM Models

    • 125 EXC: 1991 - 2007
    • 125 MX: 1991
    • 125 SX: 1992 - 2009, 2011 - 2013
    • 144 SX: 2007 - 2008
    • 150 SX: 2009 - 2014
    • 150 XC: 2010 - 2013
    • 200 EXC: 1998 - 2005, 2010 - 2011
    • 200 MXC: 1998 - 2003
    • 200 SX: 1999 - 2004
    • 200 XC: 2006 - 2009
    • 200 XC-W: 2006 - 2011, 2013 - 2014
    • 250 DXC: 1992
    • 250 EXC: 1991 - 2005, 2010 - 2011
    • 250 MX: 1990 - 1991
    • 250 MXC: 1998 - 2001
    • 250 SX: 1992 - 2014
    • 250 SX-F: 2006 - 2014
    • 250 XC: 2006 - 2011, 2013 - 2014
    • 250 XC-F: 2008 - 2009, 2011, 2013 - 2014
    • 250 XCF-W: 2007 - 2010, 2013 - 2014
    • 250 XCF-W Six Days: 2011
    • 250 XC-W: 2007 - 2011
    • 300 DXC: 1990 - 1992
    • 300 EXC: 1990 - 2006, 2010 - 2011
    • 300 MXC: 1993 - 1994, 1996 - 2004
    • 300 XC: 2006 - 2011, 2013 - 2014
    • 300 XC-W: 2006 - 2014
    • 350 EXC: 1990
    • 350 EXC-F: 2012, 2014
    • 350 SX-F: 2011 - 2014
    • 350 XC-F: 2011, 2013 - 2014
    • 350 XCF-W: 2012 - 2014
    • 360 SX: 1996 - 1997
    • 380 EXC: 1998 - 2002
    • 380 SX: 1998 - 2002
    • 400 EXC: 2000 - 2002, 2004 - 2006
    • 400 LC4: 1995, 1997 - 1998, 2000
    • 400 SX: 1998, 2000 - 2002
    • 400 XC-W: 2009 - 2010
    • 440 EXC: 1994 - 1995
    • 450 EXC: 2003 - 2007
    • 450 MXC: 2005
    • 450 SMR: 2006
    • 450 SX: 2003 - 2007
    • 450 SX-F: 2008 - 2014
    • 450 SX-F Factory Edition: 2012 - 2013
    • 450 XC: 2007
    • 450 XC-F: 2008 - 2009, 2013
    • 450 XC-W: 2012 - 2013
    • 450 XC-W Racing: 2008 - 2009
    • 500 EXC: 2012 - 2014
    • 500 XC-W: 2013 - 2014
    • 505 SX-F: 2007 - 2008
    • 505 XC-F: 2008 - 2009
    • 520 EXC: 2000 - 2002
    • 520 SX: 2000 - 2002
    • 525 EXC: 2003 - 2007
    • 525 SX: 2003 - 2006
    • 530 EXC: 2009 - 2011
    • 530 EXC-R: 2008
    • 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 Enduro R: 2009 - 2010
    • 690 SMC: 2008 - 2009
    • 690 Supermoto: 2007 - 2008
    • LC4 640 Adventure: 2002 - 2003

    Suzuki Models

    • DR250: 1990, 1993
    • DR350: 1990 - 1999
    • DR350SE: 1996 - 1997, 1999
    • DR-Z250: 2004 - 2007
    • DR-Z400: 2000 - 2007
    • DR-Z400E: 2000 - 2007
    • DR-Z400S: 2000 - 2009, 2011 - 2013
    • DR-Z400SM: 2005 - 2009, 2013
    • GSX-R1000: 2001 - 2002, 2004 - 2008
    • GSX-R600: 2001 - 2009
    • GSX-R750: 2000 - 2009
    • QuadRacer 250R: 1986 - 1992
    • QuadRacer R450: 2006 - 2009
    • QuadSport Z400: 2003 - 2009, 2012 - 2013
    • RM125: 1986 - 2007
    • RM250: 1986 - 2008
    • RMX250: 1989 - 1998
    • RMX450Z: 2010
    • RM-Z250: 2004 - 2014
    • RM-Z450: 2005 - 2014

    Yamaha Models

    • Banshee 350: 1989 - 2006
    • Blaster 200: 1988 - 2006
    • FZ1: 2001 - 2011
    • Raptor 250: 2008 - 2011
    • Raptor 350: 2005 - 2011, 2013
    • Raptor 660R: 2001 - 2005
    • Raptor 700: 2014
    • Raptor 700R: 2006 - 2009, 2011, 2014
    • Raptor 700R SE: 2014
    • TT350: 1986 - 1987
    • TT600: 1986
    • Warrior 350: 1989 - 2004
    • WR250F: 2001 - 2009, 2011 - 2013
    • WR250R: 2008 - 2011, 2013 - 2014
    • WR250X: 2008 - 2011
    • WR250Z: 1991, 1994 - 1997
    • WR400F: 1998 - 2000
    • WR426F: 2001 - 2002
    • WR450F: 2003 - 2009, 2011 - 2012, 2014
    • WR500: 1992 - 1993
    • YFZ450: 2004 - 2009
    • YFZ450R: 2009 - 2013
    • YZ125: 1986, 1989 - 2014
    • YZ250: 1988 - 2014
    • YZ250F: 2001 - 2014
    • YZ400F: 1998 - 1999
    • YZ426F: 2000 - 2002
    • YZ450F: 2003 - 2014
    • YZ490: 1982 - 1990
    • YZF-R1: 1998 - 2011

    Product Reviews Showing 15 of 18 Reviews

    Overall Rating: 4.82 of 5

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

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Renthal rear sprocket

    Had wanted a steel sprocket when I placed the order but recieved an alluminum one when it showed up and didnt want to wait another week.Would not recommend to anyone riding a 450. Won't last more than maybe 20 hours before the teeth start stretching.

    SHELTON - November 12, 2014

    (San Angelo, TX)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Renthal 44 tooth sprocket

    Got a WR250X and it helped a lot. The OE one is heavy and the Renthal one is light. Got only 300 hard miles on it and so far looks like new still.

    Michael - April 05, 2014

    (FLETCHER, MO)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Pretty!

    It fit great. I don't know yet how durable it is as I only have a couple rides on it but man is it pretty!

    Brian - March 03, 2014

    (Cypress, CA)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Good product

    Very satisfied with this product and the shipping time.

    Bill - December 17, 2013

    (Pearland, TX)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Renthal rear sprocket

    Great sprocket. These are lightweight and durable but won't last as long as a heavier metal sprocket will. We have used renthal chains and sprockets on our motocross bikes for years and they fit, and wear well.

    Joe - August 07, 2013

    (essex, VT)

    Fit

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    Durability

    Features

    Cost Benefit

    renthal 520 sprocket 51 tooth

    Great product. I put it on my 07 wr250F and now the power on the low end comes on faster and the torque down low is great!

    Stephen Y - February 26, 2013

    (Danville, CA)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Renthal Rear Sprocket

    I bought this for my 2009 KX250F and it lasted 2 whole years before it needed to be replaced and i ride every weekend... Just bought a 2012 and it was the first thing i changed on the bike.

    Raymo236 - June 22, 2012

    (Hickory Hills, IL)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Renthal Sprocket 51 tooth

    Product is great for the price. The teeth wear slightly faster than the reinforced sprockets but ultimately hold up very well. I will buy this sprocket again.

    Mark - June 22, 2012

    (Cottonwood, AZ)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    awesome

    Fits great, looks great, and adding two extra teeth really increased the power of my crf250r and the red dresses it up nicely.

    blake s. - October 20, 2011

    (temecula, CA)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Great Buy

    Renthal makes excellent products. This sprocket is lighter, more durable and looks better then stock. Well worth the money, I will most likely buy another.

    JB - September 16, 2011

    (Sedro Woolley, WA)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Renthal 50T Sprocket

    This is a great buy!! I went up two teeth in rear which made my KX250F scream out of the berms!! I gave the Durability a 3 due to the fact the black is wearing off pretty quick from where it rubs on the chain slider.

    Corey B. - February 22, 2011

    (Dresden, TN)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Renthal rear sprocket

    This sprocket works great no problems so far.

    Terry - April 09, 2010

    (Santa rosa, CA)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    50 tooth CRF450R

    The stock gearing on the 450's is way too high. I couldn't down size the counter-shaft sprocket because the O-ring chain would bore a hole in the case. Going up 2 sizes in the rear allows me to blast out of corners and lug it if I really need to. The Renthal sprocket looks better than the stock Sunstar and is much lighter too. I don't know how it wears yet and there aren't any features except the colored finish, so I really couldn't rate durability and finish.

    Jerome James - November 16, 2009

    (Portland, OR)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    Sprocket looks, installs, functions great!

    Super happy going up two teeth on my CRF 150F!

    Kristen Miller - November 02, 2009

    (Vancouver, WA)

    Fit

    Finish

    Durability

    Features

    Cost Benefit

    520 Rear Sprocket

    The Renthal sprocket is much lighter than the OEM sprocket on my KLX 300. The fit, finish and function of this sprocket is very good.

    Jon - January 12, 2009

    (Milford, MI)
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