The 'Un-Official' Campagnolo Ekar thread

[vespasianus]

Originally Posted by Gwerziou

So in conclusion, you just want to get that Ekar derailleur pulley as absolutely close as possible to the cogs, right?

Yes, and the cage should be nowhere near touching anything.

[perdido]

Originally Posted by vespasianus

I see the pics, but can anybody else?

Yes!! thank you, I will compare to my set up later today.
To be clear, the cage rubbing against the cog happens when shifting from the third largest cog on to the penultimate cog. Looks like your derailleur cage has some rub marks from the cassette?

Either way, I'm starting to believe that my derailleur might be bent. I can't see any other reason why it would shift OK with a 9-36 cassette and not with a 9-42.
(Hanger is straight, shifting problems are replicated when installing the 9-42 cassette on "road wheels").

[herb5998]

Originally Posted by Gwerziou

So in conclusion, you just want to get that Ekar derailleur pulley as absolutely close as possible to the cogs, right?

Not exactly, 3mm is considered the maximum distance. That is checked when the RD is positioned on the 12th Cog, and space between upper pulley wheel and 13th cog.

When doing installs. I normally use 3mm as the starting point and adjust the b screw position until shifting is smooth and quiet. Sometimes, that means the spacing being more than 3mm, and others even closer.

[vespasianus]

Originally Posted by herb5998

Not exactly, 3mm is considered the maximum distance. That is checked when the RD is positioned on the 12th Cog, and space between upper pulley wheel and 13th cog.

When doing installs. I normally use 3mm as the starting point and adjust the b screw position until shifting is smooth and quiet. Sometimes, that means the spacing being more than 3mm, and others even closer.

On my bikes, the closer the pulley wheel is to that cassette without making noise when shifting up or down, the better the shifting is. That is especially true going from the 13th cog to the 12th cog.

[vespasianus]

Originally Posted by perdido

Yes!! thank you, I will compare to my set up later today.
To be clear, the cage rubbing against the cog happens when shifting from the third largest cog on to the penultimate cog. Looks like your derailleur cage has some rub marks from the cassette?

Either way, I'm starting to believe that my derailleur might be bent. I can't see any other reason why it would shift OK with a 9-36 cassette and not with a 9-42.
(Hanger is straight, shifting problems are replicated when installing the 9-42 cassette on "road wheels").

I noticed that a bit as well and I think happened when I bent my derailleur hanger and had to ride home.

Currently, when my RD is in the third largest cog, the back of that cage is about 5mm below and in line with the 2nd cog.

The derailleur hanger bent when I tried taking a vanity shot of my bike, and a guest of wind blew it over. Landing on the drive side was enough to bend the hanger enough to cause problems.

[perdido]

I just ordered a new derailleur I found on sale.
I will report back if it keeps miss-shifting.