Originally Posted by
mander
With no shim, this can lead to clamp failure. This is indeed a jackass idea, sorry. But trying to get 26mm bars into 25.4mm clamp, which is what I was talking about to the OP, is worse.
Reading comprehension FTL. He said he was able to fit a 26mm (LARGER) handlebar into a 25.4mm (SMALLER) quill stem.
Anyway, can you elaborate on how this would be a bad idea? I still don't really understand the effect of a half-millimeter difference...