Originally Posted by
rootboy
Justin. The dimensions I gave you are from the original equipment bolt. The one that came on my TdF.
And, not recommending a standard Campy bolt. I'm using one of those ones with the quick release lever on it? Ever seen one?
No one could break one of those.

I actually don't know why I've got it on there. Figured maybe I remove my saddle when I went into the store ????
Yes, I understand what you're saying. I wouldn't consider using a QR bolt. Thems fer MTBs, man!
I don't doubt your measurements, but I think 30mm is much too wide this particular bike's seat lug. I had a 22mm (or maybe it was 25mm) and it bottomed out.
I was referring to the Campagnolo binder bolt on which one side is knurled. You use two 5M allen keys to tighten it.