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  1. #1
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    31.8 K-Wing & 31.7 Deda Stem?

    Does the .10mm really matter?

  2. #2
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    No, the difference is "round-off" type. The "real" diameter is 1-1/4" or 31.750 mm. Most manufacturers round the number up to 31.8 mm while Deda rounds down to 31.7 mm. They are the same size.

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