Originally Posted by
thinktubes
I've used an A9 for over 15 years on my Battaglin and it has worked great!!!
Based on my experience with the A9, I'm going to try a Stronglight delta on the Ciocc I'm building up. I really like the styling:

I put a Delta on my tandem over 25 years ago and it's still going strong.
The only difference between the Delta and the A9 is that the Delta has O-ring seals on the cups and locknut.