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  1. #1
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    stem clamp clearances

    so it's pretty confusing i'd say. road stems - 25.8 - 26.0 same stem should work for both they say.

    but don't use a mountain stem with road bars.

    seems to me some road stems fit better than others. some show too much of the threads of the bolts when tightened for my liking. I have a bontrager 31.8 that fits the bontrager OS bar I 've got like a glove.

    so what's the deal . how the heck can I tell what's a road stem and what isn't, if one is taking about the 'standard' , traditional sizes. some of the so called road stems i've got fit the 26.0 bars not much differently than a mountain stem.

  2. #2
    hello roadfix's Avatar
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    You forgot the 26.4 Cinellis....
    .cinelli.olympic.surly.long.haul.trucker.kona.ku.surly.steamroller.
    .litespeed.classic.litespeed.firenze.bianchi.pista.dean.colonel.plus.more.

  3. #3
    Senior Member sydney's Avatar
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    Quote Originally Posted by The Fixer
    You forgot the 26.4 Cinellis....
    ...and the old 25.0 road stuff.

  4. #4
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    no I didn't I have an old bianchi strada that had 25.0 quill and I 've got a 26.4 cinelli on it now just for the hell of it

    but those old style single bolt clamps were much more versatile and applied the pressure more evenly even if they were more work to change.

    I'm more concerned with uneven pressure on these open face clamps

    i mean if it's ok to use a 25.8 stem on a 26.0 bar

    why not use a 25.8 bar with a 25.4 stem

    the former doesn't bother anyone the latter and people freak out.

    do 2 10ths of a millmeter make that much difference?

    I like the way my 31.8 bontrager fits I may have to go that way on both of my bikes.

  5. #5
    Senior Member sydney's Avatar
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    Quote Originally Posted by miater
    no I didn't I have an old bianchi strada that had 25.0 quill and I 've got a 26.4 cinelli on it now just for the hell of it

    but those old style single bolt clamps were much more versatile and applied the pressure more evenly even if they were more work to change.

    I'm more concerned with uneven pressure on these open face clamps

    i mean if it's ok to use a 25.8 stem on a 26.0 bar

    why not use a 25.8 bar with a 25.4 stem

    the former doesn't bother anyone the latter and people freak out.

    do 2 10ths of a millmeter make that much difference?

    I like the way my 31.8 bontrager fits I may have to go that way on both of my bikes.
    Tell ya what.You do what makes you feel good. Prove Darwin right.

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    Senior Member juicemouse's Avatar
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    Quote Originally Posted by sydney
    Tell ya what.You do what makes you feel good. Prove Darwin right.
    It is my belief that every person in this world has something to teach, and everything to learn.

    In memory of Jim Price (aka. sydney) ...

  7. #7
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    i'm going out of my way to make sure I use 26.0 bars with 26.0 stems. Im' NOT using 25.8 with 26.0 even though all the manufacturers say its' ok.
    All I 'm saying is if that's ok why isn't 25.4 ok with 25.8

    I dont' think either is ok. there's a picture of a bar in the new bicycling mag of a stem at a cyclocross event. looks like a 25.4 stem with 25.8 bars to me. I see much too much of the threads on the bolts as far as I'm concerned.

    anyway, the safest thing to do I think is stick with one manufacturers bars and stems and not mix em , although I've found some ritcheys that are 25.8 and the newer ones are 26.0 so even that you have to be careful of.

    If you care. which I do.

    glad you enjoyed your laugh.

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