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Thread: Stock sprocket sizes for 1985 ATC 250R?

  1. #1
    crackshot's Avatar
    crackshot is offline Worthless, would be a vast improvement. Arm chair racerJust too addicted
    Join Date
    Sep 2004
    Location
    Idaho
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    Stock sprocket sizes for 1985 ATC 250R?

    Anyone know what the stock sprocket sizes for 1985 ATC 250R are?
    (front and rear)
    The manual I am using does not spec these and want to make sure they are correct sizes.
    1980 110
    1982 250R
    1985 200s
    1985 250R
    1985 350X
    Parting out...
    1983 250R
    1984 185s
    PM me for parts



  2. #2
    Join Date
    Jan 2005
    Location
    Great Bend
    --
    704
    13/39 is the factory gearing on the 84 250R.
    1985 KXT 250
    84 KX cylinder
    sprock racing head
    +2" Miltech swingarm
    frame mounted Rad

    1983 250R
    DG head
    290cc Big Bore
    CT pipe
    85R front end
    +1" Miltech swingarm
    2+2 axle NOS NASA
    18x10x9 Hoosiers

  3. #3
    Join Date
    Jan 2005
    Location
    RI
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    2,530
    13/39 is the factory gearing on the 85 250r also...looked it up in my service manual.

    You can download them free at http://deepa.recongamer.com

    Hope this helps,
    Mike
    1986 Tri-z
    1985 250r
    1985 200s
    1985 70[/SIZE]

  4. #4
    Join Date
    Jan 2005
    Location
    Great Bend
    --
    704
    I have no idea why I typed in 84 250R when I was wanting to type 85, sorry guys.

    I guess its my dyslexia showing through.
    1985 KXT 250
    84 KX cylinder
    sprock racing head
    +2" Miltech swingarm
    frame mounted Rad

    1983 250R
    DG head
    290cc Big Bore
    CT pipe
    85R front end
    +1" Miltech swingarm
    2+2 axle NOS NASA
    18x10x9 Hoosiers

  5. #5
    crackshot's Avatar
    crackshot is offline Worthless, would be a vast improvement. Arm chair racerJust too addicted
    Join Date
    Sep 2004
    Location
    Idaho
    --
    1,024
    Thanks. I could count on my fellow three wheeler racer members to prevail again!
    1980 110
    1982 250R
    1985 200s
    1985 250R
    1985 350X
    Parting out...
    1983 250R
    1984 185s
    PM me for parts



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