Campy Potenza HO RD with Chorus

Discuss light weight issues concerning road bikes & parts.
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Boshk
Posts: 428
Joined: Wed Jul 19, 2017 2:59 am

by Boshk

If I want to run 11-32 ultegra cassette with my Chorus groupset, will the Potenza HO medium cage work with Chorus shifters?
From the tech manual, Potenza is Power-shift but my Chorus is Ultra-shift, whats the difference?

DaveS
Posts: 2783
Joined: Fri Mar 24, 2006 1:26 pm

by DaveS

There is a difference in the RD spring tension. I used a potenza RD with ultrashift levers and it worked OK. I used a centaur 12-32 cassette. I also had an all chorus 11 speed bike with the centaur 12-32. Shifting was ok, but not the best, probably due to the cassette.

Changing to the new Chorus 12 with 11-34 was quite an improvement.

robertbb
Posts: 1319
Joined: Thu Jul 23, 2009 3:35 am
Location: Melbourne, Australia

by robertbb

DaveS wrote:
Wed Dec 18, 2019 3:37 am
There is a difference in the RD spring tension.
This. It will never work 100%, and it will get worse over time.

Get a Chorus 11 HO medium cage. I use mine with 11-25, 12-29 (chorus) and 11-32 (potenza) cassettes. All work perfectly and I never need to touch the barrel adjuster.

Boshk
Posts: 428
Joined: Wed Jul 19, 2017 2:59 am

by Boshk

robertbb wrote:
Wed Dec 18, 2019 4:12 am
DaveS wrote:
Wed Dec 18, 2019 3:37 am
There is a difference in the RD spring tension.
This. It will never work 100%, and it will get worse over time.

Get a Chorus 11 HO medium cage. I use mine with 11-25, 12-29 (chorus) and 11-32 (potenza) cassettes. All work perfectly and I never need to touch the barrel adjuster.
thanks!

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