JT Sprockets 428 Front Countershaft Sprocket

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Rating 4.98 of 5 (8 Reviews)

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Product Information

JT 428 Front Countershaft Sprocket
  • JT Sprockets are made exclusively from the finest Japanese 545C high carbon steel
  • Heat treated and hand finished to meet or exceed OEM standards
  • Outlasts any mild steel or surface hardened sprocket as much as two and three times over
  • Item # 7817
  • SKU #
  • Mfr. Part #

**Closeouts are limited to stock on hand**

FitmentView All

Yamaha Models

  • YZ85 : 2002–2016

Product Reviews 1 - 8 of 8

Overall Rating: 4.98 of 5

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

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428 Front Countershaft Sprocket

Very happy with this product. Works great!

Bill - January 11, 2016

(Pearland, TX)

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SPROCKET

FITS GREAT EASY TO INSTALL

Jay - September 26, 2014

(wytheville, VA)

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Good fit

Works as it should.

Shawn - May 14, 2014

(oliver, BC)

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Worked great.

Easy install, made the first gear on the XR100 more user friendly.

Ed - August 17, 2012

(Erie, CO)

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Good product

Worked great.

David - March 2, 2012

(Pittsburg, KS)

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Better sproket

This used XR100 I bought hav a sunstar on it. I didn't know a steel sproket could be soft? This JT brought it back to at least stock or better. Thanks JT!

Scott - January 5, 2012

(Kiln, MS)

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Fit on my 96 YZ-80.

The sprocket worked fine as a replacement on my '96 Yamaha YZ-80. I haven't used it long so I don't know how long it will last.

Eric - June 3, 2011

(McPherson, KS)

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2004 honda crf100f

This is a good and cheap item. It works well, especially for the price we paid for it. Recommended.

justus - May 13, 2009

(pitkin, LA)