Source for custom rear derailleur hanger for road bike - Campy Chorus 12 speed issues

[Alan]

Anyone know a source for a custom hanger? I have moved from Campy 10 speed to Chorus 12 speed and am experiencing shifting issues on the back dropping to the some of the middle cogs toward the higher gear (smaller cog side. The chain does not drop to the next smaller cog when you hit the thumbe lever. R der works well on cogs that are larger and lower.

My LBS thinks that my hanger needs to be set so that it is maybe 3mm farther back toward the back of the bike to permit correct shifting.

He tried changing all parts incl shifter, cassette, chain, and cable guide and nothing helped. He is an excellent mechanic so I agree with his thoughts.

Bike is a Lynskey 240 which is probably 8 years old but this should work.

Let me know if you know of anyone who can help w a modified hanger.

Thanks,

Alan

[BdaGhisallo]

Does adjusting the B-Screw accomplish anything, or have you maxed out that adjustment range?

You could try a longer screw in place of the original to push the RD further away from the cassette.

[AngryScientist]

Try a wolf tooth road link first...

[Alan]

He looked at the B screw and decided that it didn't really help and we need to focus on the hanger.

Alan

[herb5998]

any pictures of the current setup as to how the RD is situated with relation to your current hanger?

[charliedid]

Originally Posted by Alan

Anyone know a source for a custom hanger? I have moved from Campy 10 speed to Chorus 12 speed and am experiencing shifting issues on the back dropping to the some of the middle cogs toward the higher gear (smaller cog side. The chain does not drop to the next smaller cog when you hit the thumbe lever. R der works well on cogs that are larger and lower.

My LBS thinks that my hanger needs to be set so that it is maybe 3mm farther back toward the back of the bike to permit correct shifting.

He tried changing all parts incl shifter, cassette, chain, and cable guide and nothing helped. He is an excellent mechanic so I agree with his thoughts.

Bike is a Lynskey 240 which is probably 8 years old but this should work.

Let me know if you know of anyone who can help w a modified hanger.

Thanks,

Alan

Silca has started to produce 3D printed Ti hangers so maybe you could have someone produce something 3D for your needs?

Member kppolich may have some insight regarding 3D printing. Also Shapeways might be worth a look/chat.

[Alan]

See pic of der on my frame. This is in the gear range that has issues.

[ATTACH]1698071806

[AngryScientist]

Again, try the roadlink. That solved my problems with Chorus 12 install.

[herb5998]

comparing your photo to the Campag 12sp RD on my Kirk, the angle looks quite similar, and I'm not experiencing those issues, your RD position doesn't look extreme compared to any other Campag installations I've done lately for 12sp.

Chain length correct? (Chainstay length and gear combo is the determinator)

I'd also check what your chain wrap looks like on the 11T cog, that is where the B (H in the Campagnolo manuals) Screw adjustment needs to be performed (which is different than previous Campag setups)

[Alan]

This makes sense to me. I called my LBS and he thinks the Roadlink DM will work so he is ordering one to try

https://www.wolftoothcomponents.com/...ts/roadlink-dm

[oldpotatoe]

Originally Posted by Alan

Anyone know a source for a custom hanger? I have moved from Campy 10 speed to Chorus 12 speed and am experiencing shifting issues on the back dropping to the some of the middle cogs toward the higher gear (smaller cog side. The chain does not drop to the next smaller cog when you hit the thumbe lever. R der works well on cogs that are larger and lower.

My LBS thinks that my hanger needs to be set so that it is maybe 3mm farther back toward the back of the bike to permit correct shifting.

He tried changing all parts incl shifter, cassette, chain, and cable guide and nothing helped. He is an excellent mechanic so I agree with his thoughts.

Bike is a Lynskey 240 which is probably 8 years old but this should work.

Let me know if you know of anyone who can help w a modified hanger.

Thanks,

Alan

If you disconnect the rear der cable and in the stand, pedal and push the rear der up the corset and then let go of it..does it return all the way down to the highest(smallest) cog?

Is he using the extended part of the hanger shown in 1:45 of this video?

https://www.campagnolo.com/us-en/sup...mechanics.html

I see from the pix, it is being used...BUT I'd check the gig with rear der cable not connected. Or try it w/o the little extended thing...

1:45 of the video.

[Alan]

The direct mount Roadlink solved this. My Lynskey R240 has fairly short chain stays and so the r der hanger needed to go farther back which the Roadlink DM accommodated.

Just wanted to let all know this is fixed. If you get 12 speed Campy with the widest range cassette you need to be aware of this.

Alan

[AngryScientist]

You're welcome

[Alan]

I am the OP. So the Roadlink DM didn't really work. Per my LBS it pushed the der too far back. We both believe the problem is that my current r der hanger is essentially vertical if you look at the prev pic I posted. Modern bikes have the hanger 5-10mm toward the back of the bike.

I saw a modern Moots and the hanger was set back from the axle by a significant amount. I do have a pic and it looks to be about 10mm.

I think the solution is a custom r der hanger. The question is how to get one made economically in the US. I have seen a few sites in foreign countries that said they would do custom. Anyone know of a US source?

Any thoughts are appreciated on this.

Thanks

Alan

[notlance]

Maybe this -

https://wheelsmfg.com/catalogsearch/result/?q=lynskey