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  1. #1
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    Prolly a stupid question

    I'm assembling a nice toolbox for my bike repairs and maintenance needs. I wonder if all the bikes bolts and nuts are metric only or is there a few imperial ones in the mix ?

    That would help me determine whenever I only need a metric set or not.

    As for the thread title, I hope you take it as there is no stupid questions, only stupid people

  2. #2
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    Reputation: gmats's Avatar
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    Aloha, yes, bicycles are essentially all metric. That includes the tire levers and crescent wrench. Just joking.

  3. #3
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    As far as a complete set goes, you'd need metric, sae, and whitworth. The likelihood of using either of the last two are pretty low, unless you are in the habit of working on very old bikes (or very cheap ones). You would almost be better served by using a bunch of different sized adjustable wrenches.

  4. #4
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    There are a few SAE Allen screws on bikes. A few of the suspension sub assemblies use SAE set screws and I9 uses one on their freehub body. A basic set of loose Allen keys is pretty reasonable and are common enough on other things to justify having them.

    Good luck finding a set of whitworth wrenches, much less a use for them outside of vintage British cars, scoots and bicycles.

  5. #5
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    Thanks for the replies. I won't fix very old bikes since the oldest is from 1999.

    I already have a full metric and sae sets in my automotive toolbox but since I wanted to build a portable bike toolbox, I don't want to carry too much for nothing, hence my question.

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