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Moose Racing 520 Front Countershaft Sprocket

520 Front Countershaft Sprocket

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$13.95 - $25.95

Rating 4.86 of 5 (36 Reviews)

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Moose Racing 520 Front Countershaft Sprocket

Whether you are just looking to change up the gear ratio on your ride or replacing a worn sprocket you can’t go wrong with this Moose Racing 520 Front Countershaft Sprocket. This wear resistant chromoly-steel countershaft sprocket will be sure to last ride after ride.
  • Machined from impact and wear resistant chromoly-steel
  • Inner splines are broached to provide maximum spline-to-countershaft contact, this helps distribute driveline forces over the largest possible area
  • Heat treated, then finished with a nickel coating for corrosion resistance and lubricity
  • Made in the USA

**Closeouts are limited to stock on hand**
  • Item # 9924
  • SKU #
  • Mfr. Part #

FitmentView All

Honda Models

  • ATC250R : 1986
  • CR125R : 1987–2007
  • CR250R : 1988–2007
  • CR500R : 1988–2001
  • CRF250R : 2004–2014
  • CRF250X : 2004–2009, 2012–2013, 2015
  • CRF450R : 2002–2016
  • CRF450X : 2005–2010, 2012–2015
  • TRX250R : 1986–1989
  • TRX250X : 1987–1988, 1991–1992
  • TRX300EX : 1993–2009
  • TRX400EX : 1999–2008
  • TRX400X : 2009, 2012–2013
  • TRX450ER : 2012–2013
  • TRX450R : 2004–2009
  • TRX700XX : 2008–2009
  • XR200R : 1986–1988, 1990–1991, 1993–2002
  • XR650L : 1993–2009, 2012
  • XR650R : 2000–2007

Kawasaki Models

  • KDX200 : 1989–2006
  • KDX220 : 1997–2005
  • KDX250 : 1991–1994
  • KFX400 : 2003–2006
  • KFX450R : 2008–2009
  • KL250 Super Sherpa : 2000–2003
  • KLR650 : 1998–2012
  • KLX125 : 2003–2006
  • KLX250R : 1994–1996
  • KLX250S : 2009
  • KLX300R : 1997–2002
  • KLX400 : 2003
  • KLX450R : 2008–2009
  • KLX650 : 1993–1995
  • KX125 : 1986–2005
  • KX250 : 1987–2007
  • KX250F : 2004–2012
  • KX450F : 2006–2015
  • KX450F Monster Energy : 2009
  • KX500 : 1987–2004
  • Lakota 300 : 1995–2003
  • Mojave 250 : 1987–2003

KTM Models

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

Polaris Models

  • Outlaw 500 : 2006
  • Predator 500 : 2003–2006

Suzuki Models

  • DR250 : 1990–1993
  • DR250S : 1990–1992
  • DR250SE : 1993–1995
  • DR350 : 1990–1999
  • DR350S : 1990–1993
  • DR350SE : 1996–1999
  • DR-Z250 : 2001–2007
  • DR-Z400 : 2000–2007
  • DR-Z400E : 2000–2007
  • DR-Z400S : 2000–2009, 2011–2012
  • DR-Z400SM : 2005–2009, 2013–2015
  • QuadRacer 250R : 1986–1992
  • QuadRacer R450 : 2006–2009
  • QuadRunner 160 : 1989–1992, 2003–2004
  • QuadRunner 230 : 1987–1989, 1991–1993
  • QuadSport 230 : 1986–1988
  • QuadSport Z400 : 2003–2009, 2012–2013
  • RM125 : 1986–2007
  • RM250 : 1986–2008
  • RMX250 : 1989–1998
  • RMX450Z : 2010
  • RM-Z250 : 2004–2012
  • RM-Z450 : 2005–2012

Yamaha Models

  • Banshee 350 : 1987–2006
  • Blaster 200 : 1988–2006
  • Grizzly 125 Automatic : 2004–2008
  • Raptor 350 : 2004–2011, 2013
  • Raptor 660R : 2001–2005
  • Raptor 700R : 2006–2009, 2011, 2013
  • Warrior 350 : 1987–2004
  • WR250F : 2001–2009, 2011–2013
  • WR400F : 1998–2000
  • WR426F : 2001–2002
  • WR450F : 2003–2009, 2011–2014
  • YFZ450 : 2004–2009
  • YFZ450R : 2009–2013
  • YZ125 : 1987–2014
  • YZ250 : 1986–2014
  • YZ250F : 2001–2016
  • YZ250WR : 1989–1990
  • YZ400F : 1998–1999
  • YZ426F : 2000–2002
  • YZ450F : 2003–2016

Product Reviews 1 - 15 of 36

Overall Rating: 4.86 of 5

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

Fit

Quality

Installation

Recommend

Nice - proper size for KTM countershaft sealing

I bought a 2006 KTM 450EXC used and the previous owner had run a 13T front sprocket, but tried to reuse the spring washer. The KTM runs an o-ring and needs the spring washer to push on the sprocket, which pushes on a spacer and the spacer seals the o-ring. Some manufacturers sprockets do not have proper thickness for KTM setup - this one has not leaked a drop when used with TrickDirtbike tool steel spring washer.

Ryan - November 10, 2014

(East Mc Keesport, PA)

Fit

Quality

Installation

Recommend

Very good quality - does the job

Sturdy piece of gear. It's not identical to the sprocket that comes off the bike, so instructions as to which side faces out would be nice. Noticeably changes the gearing- drops about 500 rpm in every gear (heck-of-a-lot better on the highway).

Dan - August 25, 2014

(Independence, KS)

Fit

Quality

Installation

Recommend

Great Product

As advertised. Achieved my goal to lower the RPM of my KLR 650 on the interstate. Excellent quality and price.

Brazuca - June 16, 2014

(Phoenix, AZ)

Fit

Quality

Installation

Recommend

Moose 16T sprocket.

What a great addition to my KLR, it lowers the RPM's at highway speeds and saves on the engine and fuel usage. I recommend this for any KLR owners that ride a lot at highway speed.

Apacheharch - April 19, 2014

(Altus, OK)

Fit

Quality

Installation

Recommend

Moose Honda XR650R Front Sprocket on a XR650L

The XRR front sprocket solves the counter shaft wear problem caused by the stock XRL sprocket. Much wider spline contact area. Just install it "backwards". Ordered a 15T (stock) and a 14T to change the final drive ratio depending on the type of riding. Both sprockets work with same chain length. Fit and quality are excellent.

Mark - January 27, 2014

(Kanab, UT)

Fit

Quality

Installation

Recommend

Great fit

Put 16T on my 08 KLR 650. Dropped 400 rpm on the highway.

B LaCoste - January 9, 2014

(High River, AB)

Fit

Quality

Installation

Recommend

08 KLR 650

Great product.

JChad - December 10, 2013

(Manhattan, KS)

Fit

Quality

Installation

Recommend

520 Front

This is the highway-commuter front sprocket for sure.

D D - November 7, 2013

(san francisco, CA)

Fit

Quality

Installation

Recommend

moose sprocket

Fit perfect. No problems. Fast shipping.

Jason - July 26, 2013

(corona, CA)

Fit

Quality

Installation

Recommend

THE LITTLE GEAR THAT COULD 13T

Stock 14T, went down one tooth. It helped our two Raptor 700's with a little more mid to lower end on 3rd gear. Very easy to put on. My 13yr old son did it himself. One of many things he learned to do on his Raptor 700 in the last few weeks. I figured if he wants to ride, he should know how to fix it, or work on it.

Trent - July 23, 2013

(Vancouver, WA)

Fit

Quality

Installation

Recommend

Bad

Had this sprocket on since the beginning of the 2012 season. It was a 14t for my yz125, mine shattered about 5 miles into the woods and shot one of the teeth through my crankcase and into my clutch. luckily not my leg. I am very disappointed in moose and would like to seek compensation from a product that was faulty.

Kevin - June 19, 2013

(Glens Falls, NY)

Fit

Quality

Installation

Recommend

16t sprocket

Perfect for 08up KLR's. Lowers cruising RPM by 300/400 and raised mpg by 1 or two.

Paul - March 9, 2013

(redding, CA)

Fit

Quality

Installation

Recommend

16T Primary Gear

This is a must for any KLR owner who commutes or does a lot of slab riding. I noticed a difference right away. Like others are saying "Its like having that missing 6th gear".

Jason - March 5, 2013

(Stanwood, WA)

Fit

Quality

Installation

Recommend

Problem Free

642 problem free miles so far

Christopher - June 22, 2012

(Salt Lake City, UT)

Fit

Quality

Installation

Recommend

Moose Sprocket

Lowers the RPM nicely at highway speeds!

Larry - April 4, 2012

(Detroit, MI)
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