Stem clamp sizes
#1
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Stem clamp sizes
Ok this may seem stupid but:
I'm looking at a new stem, Deda Murex.
Deda lists it as 26,00mm clamp diameter.
Deda also lists 215 handlebars as 26mm (standard).
I've seen a few listings at online retailers for
215 handlebars as 25.8mm. Is this just a misprint?
bad measurement? rounding?
thanks
Marty
I'm looking at a new stem, Deda Murex.
Deda lists it as 26,00mm clamp diameter.
Deda also lists 215 handlebars as 26mm (standard).
I've seen a few listings at online retailers for
215 handlebars as 25.8mm. Is this just a misprint?
bad measurement? rounding?
thanks
Marty
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#2
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Measurements are not Standard.
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I've use 26.0mm aluminum bars in 25.8mm stems and it works fine. I'm not sure about the reverse, tho.
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Originally Posted by Gonzo Bob
I've use 26.0mm aluminum bars in 25.8mm stems and it works fine. I'm not sure about the reverse, tho.
Maybe I'm paranoid, but is the Ad-Bot following me
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Originally Posted by lotek
Ok this may seem stupid but:
I'm looking at a new stem, Deda Murex.
Deda lists it as 26,00mm clamp diameter.
Deda also lists 215 handlebars as 26mm (standard).
I've seen a few listings at online retailers for
215 handlebars as 25.8mm. Is this just a misprint?
bad measurement? rounding?
thanks
Marty
I'm looking at a new stem, Deda Murex.
Deda lists it as 26,00mm clamp diameter.
Deda also lists 215 handlebars as 26mm (standard).
I've seen a few listings at online retailers for
215 handlebars as 25.8mm. Is this just a misprint?
bad measurement? rounding?
thanks
Marty
26mm is the more common "standard", but 25.8mm isn't exactly uncommon, either. (And then there's the new "Over Size" standard.)
Mismatching the sizes will result in high point-loading of the handlebar, which significantly reduces the handlebar's strength where it meets the stem. Since it's so easy to get matching parts, why bother with making perfectly good parts weak?
-Erik
#6
Senior Member
Originally Posted by danka24
Measurements are not Standard.
I think you'd be ok using the deda handlebar w/ the deda stem. it would be stupid for the manufacturer to make two different clamp sizes that are so similar...
good luck.
#7
Still kicking.
Between the same brands yes, but the measurements are exactly like mountain bike tire sizes. No standard between different companies. There are some tires that measure out to be the exact size, and there are other others that are over but are called that size and there are some that are called that size, but ar smaller.
For example a 2.5 highroller is more like 2.35 and a 2.5 michelin is more like a 2.7
For example a 2.5 highroller is more like 2.35 and a 2.5 michelin is more like a 2.7
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The bars are 25.8mm OD. The stem clamp is 26mm ID.
If they were both the same, how would the bars be able to fit inside the clamp, or the clamp tighten?
If they were both the same, how would the bars be able to fit inside the clamp, or the clamp tighten?
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Originally Posted by Neil H
The bars are 25.8mm OD. The stem clamp is 26mm ID.
If they were both the same, how would the bars be able to fit inside the clamp, or the clamp tighten?
If they were both the same, how would the bars be able to fit inside the clamp, or the clamp tighten?
While a non-removeable faceplate stem would be more forgiving of a size mismatch (it's designed to flex some), it's still not the best idea... The flexible side would accomidate the mismatch, the rear side will not flex (since it's held rigid by the rest of the stem) and thereby lead to point loading.