Chain riding on sprocket teeth (Campagnolo 12 speed)

Discuss light weight issues concerning road bikes & parts.
XCProMD
Posts: 799
Joined: Sat Jan 26, 2008 10:25 am
Location: Cantabria

by XCProMD

Top pulley definitely too close to 32.


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mag
Posts: 405
Joined: Thu Mar 16, 2017 12:23 pm

by mag

I can only compare with the 11-29 cassette but it really looks to be too close to the 32t sprocket.
How does it look like on the 11t from the side?

by Weenie


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Guerdi
Posts: 398
Joined: Mon Jan 15, 2007 5:27 pm
Location: Switzerland

by Guerdi

Nice hre wheels I see in the background :thumbup: .

Nejmann
Posts: 466
Joined: Mon May 06, 2013 6:25 pm

by Nejmann

I’m on 12 speed sr mechanical, and it works flawless. Can I take a picture of anything? I’m on 50/34 11-32

taylorpetie
Posts: 67
Joined: Tue May 19, 2015 4:55 pm
Location: California

by taylorpetie

I’ve also played around with the distance between the top pulley and COG (with quarter turn tightening of the screw). For each quarter turn increase, I then restart from scratch (detach tension cable etc... reset starting point).. Increased the pulley distance from around 5mm to point there was around 6.5mm distance and same outcome regardless of the distance.
Last edited by taylorpetie on Sun May 05, 2019 6:26 pm, edited 1 time in total.

taylorpetie
Posts: 67
Joined: Tue May 19, 2015 4:55 pm
Location: California

by taylorpetie

Nejmann wrote:
Sun May 05, 2019 3:26 pm
I’m on 12 speed sr mechanical, and it works flawless. Can I take a picture of anything? I’m on 50/34 11-32
Any chance you take a pic of the top pulley alignment with the smalll CoG from the rear? I’m curious whether there is a slight inward angle. And curious how much space you’ve set between the COG and top pulley. Thanks :)

Nejmann
Posts: 466
Joined: Mon May 06, 2013 6:25 pm

by Nejmann

taylorpetie wrote:
Sun May 05, 2019 5:33 pm
Nejmann wrote:
Sun May 05, 2019 3:26 pm
I’m on 12 speed sr mechanical, and it works flawless. Can I take a picture of anything? I’m on 50/34 11-32
Any chance you take a pic of the top pulley alignment with the smalll CoG from the rear? I’m curious whether there is a slight inward angle. And curious how much space you’ve set between the COG and top pulley. Thanks :)
What ring in the front? :thumbup:

taylorpetie
Posts: 67
Joined: Tue May 19, 2015 4:55 pm
Location: California

by taylorpetie

Big chain ring. Thanks!

taylorpetie
Posts: 67
Joined: Tue May 19, 2015 4:55 pm
Location: California

by taylorpetie

delete double post

Nejmann
Posts: 466
Joined: Mon May 06, 2013 6:25 pm

by Nejmann

Sorry for the dirty drivetrain, got caught in the rain earlier today. Took some photos on big-small and big-big. :thumbup:
IMG_4554.jpg
IMG_4555.jpg
IMG_4556.jpg
IMG_4557.jpg
IMG_4558.jpg

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