Wide Rims necessary?
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  1. #1
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    Too old to ride plastic

  2. #2
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    Jan says no, it must be so?

  3. #3
    tlg
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    It appears the article is mostly dealing with off road tires. It doesn't address aerodynamics. A bulbous tire is less aerodynamic than a tire that matches the rim width.

    What effect do tyres have on aerodynamics?
    it’s typical to expect that a tyre with a diameter 2-4mm smaller than the brake track width will be the best aerodynamic selection based on tyre diameter
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    He's talking ride quality and handling, going on to say the aero benefit is small and is out weighed by ride comfort.

    I don't know aero, being more concerned with ride comfort and handling myself, but thought that this was worth putting out here.
    Too old to ride plastic

  5. #5
    changingleaf
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    It looks like more theories supporting anecdotes supporting more theories.

  6. #6
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    Hmmm. I'm reminded of an old quote when it comes to trends. "Here in America, if a little is good, more is better and too much is just enough." We tend to go from one extreme to the other extreme over a period of time. That's how marketing works. However, too much of a good thing is almost never a good thing.

    I'm sure there are some benefits to wider rims. But how much wider should we really go? I still have an older mountain bike that has 17mm rims and 2.1 inch tires. When I went from 14mm to 15mm rims on my road bike, the bike felt more stable. When I built up a set of wheels with 17mm rims, I still noticed it, but less so. I then built up a set of wheels with 18mm rims and felt no difference. Law of diminishing returns? Of course there could have been other factors in what I felt, so nothing is conclusive here.

    I remember reading an article in one of the gravel bike publications which warned about using rims which are too wide for off-road riding. Their theory is that the wider the rims are relative to the tires, the more prone your sidewalls are to cuts.

    Everything in moderation.
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  7. #7
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    Quote Originally Posted by Lombard View Post
    Their theory is that the wider the rims are relative to the tires, the more prone your sidewalls are to cuts.
    Or damage to the rim itself, as it happened to mine.

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