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  1. #1
    Senior Member bluenote157's Avatar
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    what is the name of the drop out screw tensioner thing??

    and what is the proper alignment/adjustment of this thing? It seems pointless as my rear derailleur takes up the slack of the chain anyway. However, I could be missing something and maybe it does serve a purpose??

    Here is a pic of one. *pic stolen from soradicals flickr cuz i think his bike is hot*

  2. #2
    Senior Member Retro Grouch's Avatar
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    They're called "dropout screws".

    Their function is to speed wheel changes by providing a solid stop for the axle on both sides. That way (once they're set) you don't have to visually align the front of the tire with the frame.

  3. #3
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    It's called a dropout adjuster. It merely helps to locate the rear wheel squarely. It seems like there is always an active thread asking about them.

  4. #4
    Senior Member bluenote157's Avatar
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    cool thanks. Hmm.. i guess frames were not as straight as they are now seeing as my two newer bikes have vertical drops with no room to shift it up-down (or side-to-side in this case)??

  5. #5
    Great State of Varmint Panthers007's Avatar
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    Niagara has them:

    http://www.niagaracycle.com/product_...ucts_id=407258

    I bought a set to replace a bent one on my PUCH.
    How do you keep an idiot in suspense?

  6. #6
    Map maker cbchess's Avatar
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    They also help with Single speed set ups and chain tension.

  7. #7
    Let your bike be the tool cranky old road's Avatar
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    Quote Originally Posted by bluenote157 View Post
    cool thanks. Hmm.. i guess frames were not as straight as they are now seeing as my two newer bikes have vertical drops with no room to shift it up-down (or side-to-side in this case)??
    The frames were straight, but with horizontal dropouts one can adjust the wheelbase of the bike for different rides.
    Never try to teach a pig to sing...

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