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770cc

  1. 770cc MX bike?

    Raptor 700 Mods
    Hi everyone! New to this forum. I was looking for some input on my engine build ive been undertaking for awhile now. Im all set for my 727cc stroker build (+5mm crank), done all my head work and +3 TB and I find my cylinder plating has worn through at the top. I sent it away to be replated, now...
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