Originally Posted by
cyclotoine
...That the stamp is not as deep is not surprising. There is less material there than when the sleeve was added. Steel stamped bars also had very shallow stampings.
That's a good point, and consistent with this being an authentic Cinelli product.
I wonder if there are any reports of these early bars being unreliable, such that the sleeved version came so early in the aluminum bars' production?
The only bar I've broken was a bulged bar that broke under racing use, right where the bulge starts increasing in diameter. But it was a generic handlebar iir.
Some of the bulged bars sold as "butted" have actually been shown to be
thinner where the bulge is (unlike true butting).