Are chain sprockets directional?
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  1. #1
    Junior Member dreynolds's Avatar
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    Apr 2013
    Clearwater FL
    I am doing a frame off rebuild of a 1990 TW 200 with around 600 miles. I have been bead blasting parts as I go and either powder coating or painting anything that showed corrosion. I am re-assembling parts as I wait for the frame and swing arm to return from the powder coater. I took off the rear sprocket and marked the the inside with a deeply scratched "in" so I could reinstall the same direction. Well, after bead blasting and coating, I can't see the "in" anymore, nor can I see any other marks on the rear sprocket. The sprocket shows no appreciable wear, which would be my other guide. My question: is the stock sprocket on the TW directional? or can I mount it in either direction.

    Thanks for the advice. I am compiling pics as I go and will post a build thread when I get a little further along.

  2. #2
    Senior Member silverhead's Avatar
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    Apr 2013
    Central Iowa, USA
    It'll be fine. Sprockets CAN be directional, but it's because they are cut differently on one side than the other.

    They're just steel, so direction doesn't matter.
    1993 TW200

  3. #3
    Senior Member peruano's Avatar
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    Jul 2010
    Lower Rio Grande, New Mexico
    If the sprocket is worn at all it may be hooked on the power (pull side) and running it backwards might get a few more miles out of it, but I wouldn't do it. Some folks do such things on bicycles, but then they are traveling a slower speeds. Examine it carefully and you'll probably see the difference. Tom
    Tom - TW200 2002, Kawasaki VN 500 2006

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    Central New Mexico

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  5. #4
    Senior Member admiral's Avatar
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    Jul 2010
    Frosty Hollow
    If the sprocket your referencing does not have a recess or otherwise excessively worn as peruano mentioned, you should be fine either direction.

    If you have a sprocket which has a recessed area, you'll have to make sure of how it's placed for proper chain alignment. When I replaced my stock rear sprocket, the replacement was recessed. I've had it mounted both ways and it didn't really matter, but you'd have to make that call for yourself.
    Hidden Content A ride in the woods helps me relax and release tension. The fact I'm dragging a body should be entirely irrelevant?

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