JT 520 Front Countershaft Sprocket

JT 520 Front Countershaft Sprocket

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$8.99 - $25.99 You save up to $4.00 (13%)

Rating 4.73 of 5 (52 Reviews)

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JT 520 Front Countershaft Sprocket

Made exclusively from the finest grade of C49 high carbon steel, JT Countershaft Sprockets are made to last with a lifespan greater than any other steel or aluminum sprocket. Each sprocket is heat treated and hand finished to exceed OEM standards, so you get the maximum power transferred to the rear wheel.
  • Designed for 520 size OEM replacements or suitable conversions to 520 size chain and sprockets
  • Outlasts any mild steel or surface hardened sprocket as much as two and three times over
  • Item is bike specific, may vary from photo
  • Item # 7787

FitmentView All

Aprilia Models

  • Pegaso 650: 2000 - 2002

Arctic Cat Models

  • DVX 400: 2004 - 2008

BMW Models

  • F650: 1997 - 2000
  • F650CS: 2003 - 2005
  • F650CS ABS: 2003, 2005
  • F650GS: 2001 - 2003, 2005 - 2007
  • F650GS ABS: 2001 - 2003, 2005
  • F650GS Dakar: 2001 - 2003, 2005 - 2007
  • F650GS Dakar ABS: 2002 - 2003, 2005
  • F650ST: 1997 - 1998
  • G650 XChallenge: 2007 - 2008
  • G650 Xcountry: 2007 - 2008
  • G650 Xmoto: 2007 - 2008

Bombardier Models

  • Rally 200: 2004 - 2006

Ducati Models

  • 748: 1997 - 2002
  • 748 Biposto: 1999
  • 800 Sport: 2003 - 2005
  • 900 SS: 1999 - 2002
  • M600 Monster: 1995 - 2001
  • M750 Monster: 1997 - 2002
  • M750 Monster Dark: 2002
  • M800 Monster: 2004
  • M900 Monster: 1994 - 2002
  • Monster 695: 2007 - 2008
  • Monster 696: 2009 - 2010
  • Monster S2R 800: 2005 - 2007

Honda Models

  • ATC200X: 1986 - 1987
  • ATC250R: 1986
  • CBR1000RR: 2004 - 2012
  • CBR250R: 2011 - 2012
  • CBR600F2: 1991 - 1994
  • CBR600F3: 1995 - 1998
  • CBR600F4: 1999 - 2000
  • CBR600F4i: 2001 - 2006
  • CBR600RR: 2003 - 2014
  • CBR600RR ABS: 2009
  • CBR900RR: 1993 - 1999
  • CBR929RR: 2000 - 2001
  • CBR954RR: 2002 - 2003
  • CM250C Custom: 1982
  • CR125R: 1986 - 2007
  • CR250R: 1988 - 2007
  • CR500R: 1988 - 2001
  • CRF150F: 2003 - 2009, 2012, 2014
  • CRF230F: 2003 - 2009, 2012, 2014
  • CRF230L: 2008 - 2009
  • CRF250L: 2014
  • CRF250R: 2004 - 2014
  • CRF250X: 2004 - 2009, 2012 - 2013
  • CRF450R: 2002 - 2014
  • CRF450X: 2005 - 2009, 2012 - 2014
  • Nighthawk 250: 1991 - 1996, 1999 - 2009
  • NX650: 1988
  • RC51: 2000 - 2006
  • Rebel 250: 1985 - 1987, 1996 - 2009, 2012 - 2014
  • Super Hawk: 1998 - 2005
  • TLR200 Reflex: 1986 - 1987
  • TRX250R: 1986 - 1989
  • TRX250X: 1987 - 1988, 1991 - 1992
  • TRX300: 1995, 1997 - 1999
  • TRX300EX: 1993 - 2009
  • TRX400EX: 1999 - 2009
  • TRX400X: 2009, 2012 - 2014
  • TRX450R: 2004 - 2009, 2012 - 2013
  • TRX450R (Electric Start): 2009, 2014
  • TRX700XX: 2008 - 2009
  • XL250R: 1986
  • XL250S: 1978 - 1981
  • XL500S: 1979
  • XR200R: 1981 - 1988, 1990 - 1991, 1993 - 2002
  • XR250L: 1993 - 1995
  • XR250R: 1986 - 2004
  • XR400R: 1996 - 2004
  • XR600R: 1986 - 1990, 1992 - 1996
  • XR650L: 1993 - 2009, 2012
  • XR650R: 2000 - 2007

Husaberg Models

  • FE250: 2014
  • FE400E: 2001
  • FE450: 2009 - 2011, 2014
  • FE501: 2013 - 2014
  • FE570: 2009 - 2010
  • FE600E: 2000
  • FX450: 2010 - 2011
  • TE 250: 2013 - 2014
  • TE 300: 2013

Husqvarna Models

  • CR250: 1999 - 2002
  • SM570R: 2001 - 2002
  • SM610: 2008 - 2009
  • SMR450: 2003 - 2008
  • SMR510: 2005 - 2008
  • TC250: 2002 - 2009
  • TC610: 1998 - 2000
  • TE400: 2001
  • TE410: 1998 - 1999
  • TE570: 2001 - 2002
  • TE610: 1998 - 2000
  • WR250: 1999 - 2002
  • WR360: 1998 - 2002

Kawasaki Models

  • ER-6n: 2009
  • EX500: 1988 - 1989, 1991, 1993
  • GPz550: 1984
  • KDX175: 1980 - 1982
  • KDX200: 1983 - 2006
  • KDX220: 1997 - 2005
  • KDX250: 1980 - 1984, 1991 - 1994
  • KDX400: 1979 - 1980
  • KDX420: 1981
  • KDX450: 1982
  • KFX400: 2003 - 2006
  • KFX450R: 2008 - 2011, 2013 - 2014
  • KL250 Super Sherpa: 2000 - 2003, 2009
  • KL600: 1985 - 1986
  • KLR250: 1986 - 2005
  • KLR650: 1987 - 2014
  • KLX250R: 1994 - 1996
  • KLX250S: 2006 - 2007, 2009 - 2010, 2012 - 2013
  • KLX250SF: 2009 - 2010
  • KLX300: 1997 - 2005
  • KLX300R: 2005 - 2007
  • KLX400: 2003 - 2004
  • KLX400S: 2003 - 2004
  • KLX450R: 2008 - 2009
  • KLX650: 1993 - 1995
  • KLX650R: 1993 - 1996
  • KSF80: 2003 - 2006
  • KX125: 1986 - 2005
  • KX250: 1986 - 2007
  • KX250F: 2004 - 2005
  • KX420: 1980 - 1981
  • KX450F: 2006 - 2014
  • KX500: 1986 - 2004
  • KXT Tecate 250: 1984 - 1986
  • KZ200: 1978
  • Lakota 300: 1995 - 2003
  • Mojave 250: 1988 - 2004
  • Ninja 250R: 1988 - 1990, 1992 - 2012
  • Ninja 300: 2014
  • Ninja 500R: 1994 - 2009
  • Ninja 650: 2012
  • Ninja 650R: 2006 - 2011
  • Ninja ZX-6: 1990 - 2002
  • Ninja ZX-6R: 1998 - 2012, 2014
  • Ninja ZX-6RR: 2003 - 2006
  • Ninja ZX-7: 1990 - 1995
  • Ninja ZX-7R: 1991 - 1994, 1996 - 2003
  • Ninja ZX-7RR: 1996
  • Ninja ZX-9R: 1995 - 2003
  • Versys: 2010 - 2012
  • Vulcan 500 LTD: 1996 - 2006
  • Z750S: 2005 - 2006
  • Zephyr 550: 1990 - 1991

KTM Models

  • 125 EXC: 1991 - 2007
  • 125 MX: 1988 - 1991
  • 125 SX: 1992 - 2009, 2011 - 2014
  • 144 SX: 2007 - 2008
  • 150 SX: 2009 - 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, 2013 - 2014
  • 250 DXC: 1992
  • 250 EXC: 1990 - 2005, 2010 - 2011
  • 250 MX: 1986 - 1991
  • 250 MXC: 1998 - 2001
  • 250 SX: 1992 - 2014
  • 250 SX-F: 2005 - 2014
  • 250 XC: 2006 - 2011, 2014
  • 250 XC-F: 2008 - 2009, 2011, 2013 - 2014
  • 250 XCF-W: 2007 - 2010, 2013
  • 250 XC-W: 2006 - 2011, 2013
  • 300 DXC: 1991 - 1992
  • 300 EXC: 1991 - 2006, 2010 - 2011
  • 300 MX: 1990 - 1991
  • 300 MXC: 1993 - 2005
  • 300 SX: 1992
  • 300 XC: 2006 - 2011, 2013 - 2014
  • 300 XC-W: 2006 - 2014
  • 350 EXC-F: 2012 - 2014
  • 350 MX: 1989
  • 350 SX-F: 2011 - 2014
  • 350 XC-F: 2011, 2013
  • 350 XCF-W: 2012 - 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: 2000 - 2002, 2004 - 2006
  • 400 LC4: 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 - 2008
  • 450 MXC: 2003 - 2005
  • 450 SMR: 2005 - 2006
  • 450 SX: 2003 - 2007
  • 450 SX-F: 2008 - 2014
  • 450 SX-F Factory Edition: 2012
  • 450 XC: 2007
  • 450 XC-F: 2008 - 2009, 2013 - 2014
  • 450 XC-W: 2012 - 2014
  • 450 XC-W Racing: 2009
  • 500 EXC: 2012 - 2014
  • 500 MX: 1986 - 1991
  • 500 XC-W: 2013 - 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 MXC: 2003 - 2005
  • 525 SMR: 2004 - 2005
  • 525 SX: 2003 - 2006
  • 525 XC: 2006
  • 530 EXC: 2009 - 2011
  • 530 EXC-R: 2008
  • 540 DXC: 1990 - 1991
  • 550 DXC: 1992
  • 550 MXC: 1993 - 1996
  • 560 SMR: 2006
  • 600 LC4: 1991 - 1993
  • 600 MX: 1989 - 1990
  • 620 Duke: 1996 - 1997
  • 620 LC4: 1995 - 1998
  • 620 SX: 1997
  • 625 SMC: 2004 - 2006
  • 660 SMC: 2004
  • 690 Enduro: 2008
  • 690 Enduro R: 2009 - 2010
  • 690 SMC: 2008 - 2010
  • 690 Supermoto: 2007 - 2008
  • LC4 640 Adventure: 2002 - 2003

Polaris Models

  • Outlaw 450 MXR: 2008
  • Outlaw 500: 2006 - 2007
  • Outlaw 525 IRS: 2008
  • Outlaw 525 S: 2008
  • Predator 500: 2003 - 2007

Suzuki Models

  • DR200: 1986 - 1988
  • DR200SE: 1996 - 2009
  • DR250: 1990 - 1993
  • DR250SE: 1993 - 1995
  • DR350: 1990 - 1999
  • DR350S: 1990 - 1993
  • DR350SE: 1994 - 1999
  • DR650S: 1990 - 1993
  • DR650SE: 1996 - 2009, 2011 - 2012
  • DR-Z250: 2001 - 2007
  • DR-Z400: 2000 - 2007
  • DR-Z400E: 2000 - 2007
  • DR-Z400S: 2000 - 2009, 2011 - 2013
  • DR-Z400SM: 2005 - 2009, 2013
  • GN400: 1980
  • GS500E: 1989 - 2002
  • GS500F: 2004 - 2007, 2009
  • GSX-R1000: 2001 - 2008
  • GSX-R600: 2001 - 2009, 2011 - 2012
  • GSX-R750: 2000 - 2009, 2011 - 2012
  • GZ250: 1999 - 2006
  • Hayabusa: 1999 - 2007
  • Katana 600: 1989 - 2006
  • Katana 750: 1989 - 2006
  • Marauder 800: 1997 - 2003
  • QuadRacer 250R: 1986
  • QuadRacer R450: 2006 - 2009
  • QuadRunner 160F: 1991 - 2001
  • QuadSport 80: 1989 - 2006
  • QuadSport Z400: 2003 - 2009, 2012 - 2013
  • RM125: 1986 - 2007
  • RM250: 1986 - 2008
  • RMX250: 1989 - 1998
  • RM-Z250: 2004 - 2012
  • SP200: 1986 - 1988
  • TL1000R: 1998 - 2003
  • TL1000S: 1997 - 2001

Yamaha Models

  • Banshee 350: 1987 - 2006
  • Blaster 200: 1988 - 2006
  • Breeze 125: 1991 - 2004
  • FZ1: 2001 - 2007, 2009
  • FZ6: 2004 - 2008
  • Grizzly 125: 2004 - 2008
  • IT200: 1986
  • IT250: 1977 - 1983
  • IT400: 1976 - 1979
  • IT425: 1980
  • IT465: 1981 - 1982
  • IT490: 1983 - 1984
  • Raptor 350: 2004 - 2011, 2013
  • Raptor 660R: 2001 - 2005
  • Raptor 700R: 2006 - 2009, 2011, 2013
  • Seca II: 1992 - 1998
  • TT350: 1986 - 1987
  • TT600: 1986
  • TT-R230: 2005 - 2009, 2011 - 2012, 2014
  • TY350: 1986
  • Virago 250: 1995 - 2007
  • Virago 250 Route 66: 1988 - 1990
  • Warrior 350: 1987 - 2004
  • WR200: 1992
  • WR250F: 2001 - 2009, 2011 - 2012
  • WR250R: 2008 - 2011
  • WR400F: 1998 - 2000
  • WR426F: 2001 - 2002
  • WR450F: 2003 - 2009, 2011, 2014
  • WR500: 1992 - 1993
  • XT550: 1982 - 1983
  • XT600: 1986 - 1995
  • YFZ450: 2004 - 2009
  • YFZ450R: 2009 - 2013
  • YZ125: 1986 - 2012, 2014
  • YZ250: 1986 - 2012, 2014
  • YZ250F: 2001 - 2012
  • YZ400: 1977 - 1979
  • YZ400F: 1998 - 1999
  • YZ426F: 2000 - 2002
  • YZ450F: 2003 - 2014
  • YZ465: 1980 - 1981
  • YZ490: 1982 - 1990
  • YZF600R: 1995 - 2006
  • YZF-R1: 1998 - 2012, 2014
  • YZF-R6: 1999 - 2012, 2014

Product Reviews Showing 15 of 52 Reviews

Overall Rating: 4.73 of 5

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

Fit

Finish

Durability

Features

Cost Benefit

17 Tooth Front Sprocket

Great fit and no hassle to put on.

Gary grizzard - August 09, 2007

(Chattanooga, TN)

Fit

Finish

Durability

Features

Cost Benefit

15T JT sprocket

Fits and functions as good or better than stock.

Slick Rick - August 09, 2007

(N.B., MN)

Fit

Finish

Durability

Features

Cost Benefit

JT 15 Tooth Front Sprocket

Nice, well-built part; easy to replace. Used in conjunction with the JT 15 Tooth Front Sprocket on my wife's Ninja 250, reduced cruising revs by 600rpm; Very pleased.

Justin - August 09, 2007

(Phoenix, IL)

Fit

Finish

Durability

Features

Cost Benefit

15T JT sprocket

THE best mod you can do for the bike. It makes it work as motorcycle gears are supposed to, and should have been delivered with this way stock. A well made part, easy to install without breaking the chain or adding links.

Carl_T - August 09, 2007

(Kingston, TX)

Fit

Finish

Durability

Features

Cost Benefit

all- out inpressed!

This is without a doubt the longest lasting, most dependable, front sprocket I've put through abuse so far!

lpowell - February 21, 2008

(starr, SC)

Fit

Finish

Durability

Features

Cost Benefit

JT 520 Countershaft sproket

Fits great, and also a great product. Cost was very reasonable.

Douglas Myers - March 18, 2008

(Covington, TN)

Fit

Finish

Durability

Features

Cost Benefit

Front sprocket for my ninja 250

This is the first sprocket I have had to purchase and I am pleased with it. Not too much to one I suppose...Looks nice and quality we will have to see if it lasts! I am satisfied with my purchase for sure .

Dave Young - April 24, 2008

(Dexter, MO)

Fit

Finish

Durability

Features

Cost Benefit

JT-520 Sprocket

Great deal and perfect fit.

Don Grubbs - June 12, 2008

(Monroe, GA)

Fit

Finish

Durability

Features

Cost Benefit

It's a sprocket...

Despite what some may say, this sprocket works perfectly on a 2008+ ninja 250. I just installed it on mine and there were no problems. As for the quality of the piece, I couldn't find any flaws. Everything fit snuggly just as it should.

Ryan - July 01, 2009

(Reading, PA)

Fit

Finish

Durability

Features

Cost Benefit

Can't beat the price

Got her on sale for $6...a no brainer. Solid quality steel sprocket. Fits great and easy installation. I'll buy another in four to six months after the Florida sand wears this one out. Grooved teeth seem to have good bite. Highly recommend .

Justin Oeltjen - July 14, 2009

(Tallahassee, FL)

Fit

Finish

Durability

Features

Cost Benefit

JT-520 Front Countershaft Sprocket

Great fit and great cost. Highly recommended

Zack - April 26, 2010

(South Glens Falls, NY)

Fit

Finish

Durability

Features

Cost Benefit

Good change from OEM

Got this to replace a worn original front sprocket on my 2005 BMW F650GS. I had seen comments about replacing the 16-tooth OEM with a 15 tooth, and this 15 tooth came up on the site as the recommended replacement. Seems to be high quality and very easy to install. Best of all the bike does move more smoothly at low speeds/low gear (both 1st and 2nd) with the 15-tooth. And although the replacement doesn't have the rubber on the sides that the OEM had I haven't noticed it being any noisier.

Philip - August 19, 2010

(Alexandria, VA)

Fit

Finish

Durability

Features

Cost Benefit

JT - 520 Front Countershaft Sprocket

1 tooth smaller than stock gave just the right amount of gear change, fit was perfect, good price.

Eric - September 02, 2010

(China, ME)

Fit

Finish

Durability

Features

Cost Benefit

520 Front Countershaft Sprocket

The sprocket was easy to install and fit perfectly.

Joe L. - September 20, 2010

(Bettsville, OH)

Fit

Finish

Durability

Features

Cost Benefit

Exactly What I Was Looking For

I own a Ninja 250. Replaced the chain and sprockets (went to a 15/44 setup). Went on very easy. High quality product and the price was very reasonable. The bike has more pep and runs much smoother with the change.

James N. - October 07, 2010

(Knoxville, TN)
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