31.7 stem with 31.8...
 

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[Closed] 31.7 stem with 31.8 bar

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I need a shorter stem for my sons road bike the one I’m looking at is a Deda but it’s 31.7 & his bars are 31.8. When I searched about this .1mm difference what I read was Deda round down the size where everybody else rounds up & the actual measurement is 31.75 ?
Can anybody confirm this for me or have any experience of this ?
Thnks.


 
Posted : 14/06/2020 5:24 pm
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but it’s 31.7

It isn’t. There are three bar sizes/standards. 25.4, 31.8 & 35mm. 0.05mm isn’t worth worrying about.


 
Posted : 14/06/2020 5:31 pm
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Thanks 👍


 
Posted : 14/06/2020 5:46 pm
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Sounds like a copy and paste error putting the product online.


 
Posted : 14/06/2020 5:47 pm
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I read was Deda round down the size where everybody else rounds up

Is correct, IIRC a few Italian brands do likewise.

It's 1.25 inches.


 
Posted : 14/06/2020 6:08 pm
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Sounds like a copy and paste error putting the product online.

Nope


 
Posted : 14/06/2020 6:13 pm
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They will work fine, have used 31.7 deda stems with 31.8 bars without an issue. As TINAS confirms it's just difference brands marketing


 
Posted : 14/06/2020 6:27 pm
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it’s just difference brands marketing

Seems odd. Wonder how many sales they’ve missed because folk think it’s a different size.


 
Posted : 14/06/2020 6:32 pm
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Thnks everybody all sorted & purchased


 
Posted : 14/06/2020 6:33 pm

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