Originally Posted by
Kontact
Sorry, missed your post.
Yes, the more gears you have the worse small errors add up. Mainly because an error of 2mm is a much larger percentage of a close spaced cog than a wide spaced cog.
The other problem is that many derailleurs come with and accumulate pivot wear that causes the derailleur to sag into a different geometry. Campy often seemed to be a problem starting in the latter 11 speed era, but any derailleur can be an issue. And you can't make it go away.
If you do have Campy Ekar, back the main shift lever slightly back away from the brake lever using the reach adjustement. This seemed to increase shift accuracy because the levers interfere with each other.
I am running the wheeltop gex derailleur and rotor 13 speed 10/52 cassette. Another issue I see is the deflection the derailleur hanger sees during shifting under load. It does not bend but it does move a lot. A stiffer hanger will make for more snappy shifts under load.
Last edited by Hill160881; 08-16-25 at 03:23 AM.