26 bar in a 25.4 stem clamp
11-30-07, 08:13 AM
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surly old man
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26 bar in a 25.4 stem clamp
On an open-faced threadless stem is this a problem?
jim
jim
11-30-07, 08:51 AM
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Heck yeah it's a problem. Don't do it.
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11-30-07, 11:43 AM
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surly old man
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For what it is worth, a quick search of various forums here seem to indicate that some people do it and some would never do it.
I do not have an iron in this fire, I am just trying to solicit more input. I am reluctant to weaken that point of a bike at all (seems like it would be under a LOT of stress). So I am curious to whether this .6mm difference will crush the bar. Or if the bolts of an open face stem can be tightened carefully so as not to crush the bar and yet hold it securely.
jim
I do not have an iron in this fire, I am just trying to solicit more input. I am reluctant to weaken that point of a bike at all (seems like it would be under a LOT of stress). So I am curious to whether this .6mm difference will crush the bar. Or if the bolts of an open face stem can be tightened carefully so as not to crush the bar and yet hold it securely.
jim
11-30-07, 11:50 AM
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For what it is worth, a quick search of various forums here seem to indicate that some people do it and some would never do it.
I do not have an iron in this fire, I am just trying to solicit more input. I am reluctant to weaken that point of a bike at all (seems like it would be under a LOT of stress). So I am curious to whether this .6mm difference will crush the bar. Or if the bolts of an open face stem can be tightened carefully so as not to crush the bar and yet hold it securely.
jim
I do not have an iron in this fire, I am just trying to solicit more input. I am reluctant to weaken that point of a bike at all (seems like it would be under a LOT of stress). So I am curious to whether this .6mm difference will crush the bar. Or if the bolts of an open face stem can be tightened carefully so as not to crush the bar and yet hold it securely.
jim
Obviously you don't want to crush the bar and you don't want to stress the face plate resulting in possible faceplant.
But to say never with out more info is wrong.
11-30-07, 12:04 PM
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My experience with components is that manufacturers' tolerences can be greater than .6mm.
I position the parts together and see how they match up; if it looks good I'll do it.
Remember, aluminum really doesn't like to be bent.
I position the parts together and see how they match up; if it looks good I'll do it.
Remember, aluminum really doesn't like to be bent.
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Last edited by rmfnla; 12-02-07 at 09:20 PM.
11-30-07, 04:33 PM
#8
surly old man
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Thanks for the advice.
Turned out not to be a problem however, as my beloved LBS had a reamer to open it up to 26.0. Took only a minute and he did it pro bono.
jim
Turned out not to be a problem however, as my beloved LBS had a reamer to open it up to 26.0. Took only a minute and he did it pro bono.
jim
11-30-07, 08:27 PM
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I've been doing it both ways for years without incident.
Then again I've got a good dental plan.
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This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.
This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.
