Just a quick Cinelli stem question: Is there any way to tell the clamp diameter of my Cinelli XA without a caliper? I was looking for a longer one on ebay and they all seem to be 26.0 instead of Cinelli-sized 26.4. I assumed that it had to be the latter, since it's paired with Cinelli 66 Campione del Mundo bars.

Ain't got no caliper, and it's very beginning of the real riding season here, so I won't be able to stop into a shop and jack theirs for a second since everyone's slammed.

Did they make the XA long enough for it to come in both sizes, or do I have standard sized bars and a standard stem? Inquiring minds want to know, as I need a 140mm one, want to use these bars, and I don't want to have to buy a stem hardly anyone would need twice.

The one on my bike has the new logo, in case there are variations. The bike itself has a full 83 SR group and C-Record wheels, so it's possible the stem and wheels were later additions.

Thanks!

Good guess at 26.4, but calipers are your friend. Harbor Freight has 4" and 6" digitals for $16 ea right now