Renthal 520 Ultralight Off-Road Rear Sprocket

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Rating 4.84 of 5 (22 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
  • SKU #
  • Mfr. Part #

FitmentView All

Kawasaki Models

  • KDX200 : 1984–2006
  • KDX220 : 1997–2005
  • KDX250 : 1991–1994
  • KLX250R : 1994–1996
  • KLX250S : 2006–2007, 2009–2010, 2012–2014
  • KLX300R : 1997–2007
  • KLX450R : 2008–2009
  • KLX650 : 1993–1996
  • KLX650R : 1993–1996
  • KX125 : 1986–2005
  • KX250 : 1986–2007
  • KX250F : 2004–2017
  • KX250F Monster Energy : 2009
  • KX450F : 2006–2017
  • KX450F Monster Energy : 2009
  • KX500 : 1984–2004

Suzuki Models

  • RM-Z250 : 2004–2006

Product Reviews 1 - 15 of 22

Overall Rating: 4.84 of 5

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

Fit

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Cost Benefit

50T

Performs well and looks great 2000 Cr250r

Kolton - January 30, 2017

(Lubbock, TX)

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We are very happy.

My kids bike looks sweet! He loves the 50T gearing. Thanks MCSS.

Joe - April 28, 2015

(Long Beach, CA)

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Renthal rear sprocket.

Great look and works well. Only problem I ordered a red one and a silver one showed up.

Wes - April 17, 2015

(Wilton, ND)

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Quality product

Well machined and attractively finished. Perfect fit.

Mike - January 21, 2015

(Charlotte , NC)

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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)

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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 5, 2014

(FLETCHER, MO)

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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 3, 2014

(Cypress, CA)

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Good product

Very satisfied with this product and the shipping time.

Bill - December 17, 2013

(Pearland, TX)

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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 7, 2013

(essex, VT)

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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)

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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)

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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)

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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)

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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)

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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)