Originally Posted by
buldogge
I have the new 12-30 paired with a Centaur 50/34 and Centaur med cage RD. The dropout is a Campy 1010, I believe.
Zero issues.
That's good to know. I believe a standard 53-39 would pose less of a challenge to the medium cage rear derailleur with the 12-30 cassette than your 50-34 both in terms of chain wrap and pulley positioning. Does that make sense or not?