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  1. #1
    West Chester, PA
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    Can we please stop saying "OD" when talking rim width?

    D does not mean width. OD means outside diameter. If your rims were 35mm OD they wouldn't even be big enough for your rollerblades.

    Mods - please sticky this

  2. #2
    Ride Fast Take Chances :)
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    or outer dimension
    Making shit harder than it needs to be isn't awesome, it's just...harder.

  3. #3
    🗿 📄 ✂
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    Or Oven Dried Solid.

  4. #4
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    Holy crap I'm a CAD engineer and when I first got into mtb the OD measurement rim width debacle was so confusing

    Sent from my SAMSUNG-SM-G935A using Tapatalk

  5. #5
    Barely in control
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    As soon as you stop saying 25c when you mean 25mm.

  6. #6
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    I use absolute Torr, adjusted for density altitude, for tire pressure. You should too.

  7. #7
    BOOM goes the dynamite!
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    Someone's channeling their inner tealy.

  8. #8
    Mr. Buck E. Fikes
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    Quote Originally Posted by MSU Alum View Post
    I use absolute Torr, adjusted for density altitude, for tire pressure. You should too.
    I always refer to my E6B prior to filling my Plus tires.

  9. #9
    2x is underrated
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    Maybe IW/OW for inside/outside width? Or just have everyone adopt the WTB i(xx) system for internal width?

    This is frustrating. I ordered a 559x24 wheel, it SAID 559x24 on the title. And what did I get? It says 559x18 right on the wheel. Bastards. 559x24 is outer width but they carefully hid that fact. I returned the wheel.
    Gallia est omnis divisa in partes tres: quod Belgiae, quod Celtae, et quod Aquitainae.

  10. #10
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    ^^^ CE

    caveat emptor.

    I'm OK with OD (outside dimension). It's RPMs that get me.
    Do the math.

  11. #11
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    Can people stop using "ID" for internal width?

  12. #12
    BOOM goes the dynamite!
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    Quote Originally Posted by RS VR6 View Post
    Can people stop using "ID" for internal width?
    Why? This is something I can identify with for some reason.

  13. #13
    Always in the wrong gear
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    Why do we even talk about outer width? It’s a useless measurement. It has no impact on tire width or profile, or performance as inner width does. At best, it’s marginally informative when coupled with the inner width of a rim, so one knows wall thickness. Being that alloy rims are all about the same, and carbon rims actually list wall thickness as an idea of ‘burliness’ vs weight-weenie, specifying outer anything is about as useful as listing top tube diameter.

    I very much advocate for simply listing rim dimensions default to inner width. As in ‘those are 30mm rims’.

    Or at least annotate “i”.... like i30mm.
    Don’t modify the trail to match your skills, modify your skills to match the trails.

  14. #14
    Just a flesh wound
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    Are we talking inner ID or outer ID? Before or after the fuzzy things are gone from my tires? Do you want it with a metric conversion calculator? I think I have a link to an app for that. And if the outer ID is not as wide as the inner ID, does it change the ERD, and can it still be boost +?
    My name is Chris and I ride a Prophet 650b with a Lefty.

  15. #15
    West Chester, PA
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    Quote Originally Posted by RS VR6 View Post
    Can people stop using "ID" for internal width?
    Crap. Possible thread fail. Maybe it was ID that triggered me. Either way, I may have OD'd on some Luden's cough drops.

    Back to my safe space...

  16. #16
    RAKC Industries
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    Quote Originally Posted by noapathy View Post
    Why? This is something I can identify with for some reason.
    Best post all day!

    Sent from my SM-G950U using Tapatalk
    Life on a bike doesn't begin till the sun goes down.


  17. #17
    BOOM goes the dynamite!
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    Quote Originally Posted by 92gli View Post
    Crap. Possible thread fail. Maybe it was ID that triggered me. Either way, I may have OD'd on some Luden's cough drops.

    Back to my safe space...
    If you're struggling with your ID, it's probably best to talk about it. Please make yourself comfortable.

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  18. #18
    Armature speller
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    iXX for inner width and ETRTO if you want me to buy your wheel.

  19. #19
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    Quote Originally Posted by RS VR6 View Post
    Can people stop using "ID" for internal width?
    Internal width would be IW. ID is inner dimension.

  20. #20
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    Come on Y'all just go ride Yer bike don't care bout id, od, iw, ow, jeez...

  21. #21
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    You say 6 things in 8 and a half years and THIS is the thread you wake from the dead!? Lol

  22. #22
    BOOM goes the dynamite!
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    Id have to guess he thought id was important. Kinda makes sense id you think about id. 7 months to reply...he puts a lot of thought into each. You should feel special to be a part of id.

  23. #23
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    i always thought Oreos Devoured....now i know why people looked at me weird when i said 50mm o.d. no matter what bike im on.

  24. #24
    Nat
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    OD = Oculus Dextrous. Am I right?

  25. #25
    Trail Rider
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    while we're at it, stop saying "pull the trigger ".
    Trek Fuel EX 9.8
    Trek Checkpoint SL 6

  26. #26
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    Orgastic Diarrhea
    It is no measure of health to be well adjusted to a profoundly sick society.

  27. #27
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    Quote Originally Posted by 92gli View Post
    D does not mean width. OD means outside diameter. If your rims were 35mm OD they wouldn't even be big enough for your rollerblades.

    Mods - please sticky this
    Unfortunately it's not wrong to call it diameter, but it does laugh in the face of what makes sense.

    Then again, this is the sport of clippy shoes being called clipless, 27.5 being closer to 26 then 29, etc etc.

    So it ain't goin nowhere!

    Sent from my Moto G (5) Plus using Tapatalk

  28. #28
    BOOM goes the dynamite!
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    Quote Originally Posted by mlx john View Post
    while we're at it, stop saying "pull the trigger ".
    Geez, you just fired that right in there. Hope it doesn't get shot down.

  29. #29
    mtbpete
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    Same with ID. ID means inside diameter. Should be internal width.

  30. #30
    Barely in control
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    ID is inner distance, inner dimension.

  31. #31
    Nat
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    Quote Originally Posted by noapathy View Post
    Geez, you just fired that right in there. Hope it doesn't get shot down.
    That shit might fly in Rifle, CO but not anywhere else.











    Yeah, that's all I had. Kinda sucked, not really on target.

  32. #32
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    I love (that's sarcasm) the way the bike industry freely mixes Standard with Metric sizing.

    I like to run 35mm ID wheels on my 27.5" bike that runs a 650mm diameter wheel, with 2.35" tires on 148mm axle spacing. It's like WTF!

  33. #33
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    Quote Originally Posted by 92gli View Post
    You say 6 things in 8 and a half years and THIS is the thread you wake from the dead!? Lol
    I've been ridin my bike !!

  34. #34
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    Quote Originally Posted by tfinator View Post

    Then again, this is the sport of clippy shoes being called clipless, 27.5 being closer to 26 then 29, etc etc. Sent from my Moto G (5) Plus using Tapatalk
    Yeah and shouldn't it be saddlepost, not seatpost.
    Veni vidi velo!

  35. #35
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    I am starting to call them "clippy pedals". It's an onomatopoeia so grammatically correct.

  36. #36
    transmitter~receiver
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    yeah... let's make a sticky for everyone's pet peeve.
    Quote Originally Posted by pvd
    Time to stop believing the hype and start doing some science.
    29er Tire Weight Database

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