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DT125R FORUM

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  4. 520 pitch sprockets from YZ 125 - which fit?

520 pitch sprockets from YZ 125 - which fit?

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  • M Offline
    M Offline
    MDN91
    wrote on last edited by
    #1

    Hi!
    I'm about to replace the chain kit on my 1995 DT 125R, and want to do the 520 pitch upgrade - I know people are fitting sprockets from an earlier YZ 125, but from which years can I fit?

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    • CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #2

      I knew it was 2004 front sprockets 520 fit. But that era of YZ runs 428.

      If you go to B&CExpress they sell the 520 conversion kit. That's what I bought

      Always Originate, Never Pirate!

      M 1 Reply Last reply
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      • CalumC Calum

        I knew it was 2004 front sprockets 520 fit. But that era of YZ runs 428.

        If you go to B&CExpress they sell the 520 conversion kit. That's what I bought

        M Offline
        M Offline
        MDN91
        wrote on last edited by
        #3

        @Calum I wanted some options in ratios, so that's why I didn't just order a complete kit - did some research and learned that following JT sprockets fit:

        Front - JTF 564 (for an example, JTF 564.13 is a 13 tooth 520 sprocket)
        Rear - JTR 853 (for an example, JTR 853.50 is a 50 tooth 520 sprocket)

        Thought this might be helpful.

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