Campagnolo 12-Speed

Discuss light weight issues concerning road bikes & parts.
Unniti
Posts: 285
Joined: Wed Mar 25, 2020 3:35 pm

by Unniti

KilgoreTrout wrote:
Wed Jun 17, 2020 7:43 am
Has anyone replaced cables on their Campag 12 set yet? I am in the middle of a build with a takeoff Record 12 and had some frayed ends I couldn't get under control. I cut back, and am still having some trouble routing internally without catching on the inner housing and starting a new fray.

I'm thinking of cutting my losses and just running a new maximum smoothness set. Because the shifters normally come connected I'm nervous that's a sign running a new set is going to be an ordeal.
If you're trying to reroute old cables you should seal the end with a soldering iron like they do on new cables to prevent frays. Running a new set isn't an ordeal, you just have to be careful not to kink the cable while routing it through the shifter. Use a screwdriver, or some other edge, to get it into place without kinks. Or if you absolutely have nothing to do it kink it on the end that will be cut off anyway.

KilgoreTrout
Posts: 7
Joined: Wed Apr 15, 2020 9:45 am

by KilgoreTrout

Yeah I definitely should have sealed the end. To my eyes it looked good but I think my problem came from small imperfections that I exacerbated while routing through the integrated bar and stem. That was the first time I did that and was far worse than I imagined it would be. By the time I was ready to get it through the frame I think I had just enough of a frayed end that it really went to work while going through the pre-installed housing.

I was more worried about if something was uniquely difficult about changing the cables in the shifters. Since they come pre-installed I was afraid that the new Campy 12 levers might have some complicated mechanism that is impossible for home hobbyists to get back together correctly.


graeme_f_k
Shop Owner / Manufacturer
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by graeme_f_k

KilgoreTrout wrote:
Wed Jun 17, 2020 12:37 pm
Yeah I definitely should have sealed the end. To my eyes it looked good but I think my problem came from small imperfections that I exacerbated while routing through the integrated bar and stem. That was the first time I did that and was far worse than I imagined it would be. By the time I was ready to get it through the frame I think I had just enough of a frayed end that it really went to work while going through the pre-installed housing.

I was more worried about if something was uniquely difficult about changing the cables in the shifters. Since they come pre-installed I was afraid that the new Campy 12 levers might have some complicated mechanism that is impossible for home hobbyists to get back together correctly.
Make sure that you reference the documentation that Campagnolo place (at great expense) online!

There is a full run-down on every aspect of installation and set up, both in the technical manual 2019 and also as a video at www.campagnolo.com under "Support", either "Documentation" for the Technical Manual or "Video Tutorials" for the video.

The material includes cable installation.

It absolutely beats me why customers don't make more use of the reference material supplied at the various manufacturer's websites.
SRAM, Shimano, Campag all have very, very comprehensive technical information available, it's up to date and most importantly, with a miniscule number of exceptions, it's reliable.

Take-off cables - the frame you are fitting to ideally should be quite a bit smaller than the frame that you removed the g/s from - inner cables need to be cut between the lever and the pinch bolt, about 1cm or so "back" from the pinch (and I'd advise, dipped in superglue, twisted tight then once the glue is dry, wiped off with Acetone to remove any "blobbiness", rather than soldered ... in the case of Maximum Smoothness. as teflon + solder doesn't work very well) so that you are not pulling a piece of cable that's been "spread" by the pinch bolt back through the outers - a sure way to scar the liners and add friction / decrease cable life.
A Tech-Reps work is never done ...
Head Tech, Campagnolo main UK ASC
Pls contact via velotechcycling"at"aim"dot"com, not PM, for a quicker answer. Thanks!

KilgoreTrout
Posts: 7
Joined: Wed Apr 15, 2020 9:45 am

by KilgoreTrout

graeme_f_k wrote:
Wed Jun 17, 2020 1:46 pm
KilgoreTrout wrote:
Wed Jun 17, 2020 12:37 pm
Yeah I definitely should have sealed the end. To my eyes it looked good but I think my problem came from small imperfections that I exacerbated while routing through the integrated bar and stem. That was the first time I did that and was far worse than I imagined it would be. By the time I was ready to get it through the frame I think I had just enough of a frayed end that it really went to work while going through the pre-installed housing.

I was more worried about if something was uniquely difficult about changing the cables in the shifters. Since they come pre-installed I was afraid that the new Campy 12 levers might have some complicated mechanism that is impossible for home hobbyists to get back together correctly.
Make sure that you reference the documentation that Campagnolo place (at great expense) online!

There is a full run-down on every aspect of installation and set up, both in the technical manual 2019 and also as a video at www.campagnolo.com under "Support", either "Documentation" for the Technical Manual or "Video Tutorials" for the video.

The material includes cable installation.

It absolutely beats me why customers don't make more use of the reference material supplied at the various manufacturer's websites.
SRAM, Shimano, Campag all have very, very comprehensive technical information available, it's up to date and most importantly, with a miniscule number of exceptions, it's reliable.

Take-off cables - the frame you are fitting to ideally should be quite a bit smaller than the frame that you removed the g/s from - inner cables need to be cut between the lever and the pinch bolt, about 1cm or so "back" from the pinch (and I'd advise, dipped in superglue, twisted tight then once the glue is dry, wiped off with Acetone to remove any "blobbiness", rather than soldered ... in the case of Maximum Smoothness. as teflon + solder doesn't work very well) so that you are not pulling a piece of cable that's been "spread" by the pinch bolt back through the outers - a sure way to scar the liners and add friction / decrease cable life.

Perfect response, Graeme. My new cables should arrive tomorrow and I think I'll be more careful and work a little slower this time around. Having the outer housing in place through the integrated bar/stem should help. That was one of the worst experiences I've ever had while working on a bike.

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Kjetil
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by Kjetil

I've just made a complete change, housings and cables. It was easily done.
Bianchi-Campagnolo
The Specialissima

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zappafile123
Posts: 489
Joined: Sun Jun 01, 2014 8:24 am

by zappafile123

KilgoreTrout wrote:
Wed Jun 17, 2020 7:43 am
Has anyone replaced cables on their Campag 12 set yet? I am in the middle of a build with a takeoff Record 12 and had some frayed ends I couldn't get under control. I cut back, and am still having some trouble routing internally without catching on the inner housing and starting a new fray.

I'm thinking of cutting my losses and just running a new maximum smoothness set. Because the shifters normally come connected I'm nervous that's a sign running a new set is going to be an ordeal.
Never reuse derailleur cables. You're wasting your time buddy.
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KilgoreTrout
Posts: 7
Joined: Wed Apr 15, 2020 9:45 am

by KilgoreTrout

zappafile123 wrote:
Thu Jun 18, 2020 11:55 pm
Never reuse derailleur cables. You're wasting your time buddy.

You're right. New cables arrive this morning. I fiddled with them some more yesterday and it ws a losing game. The cables had less than 5 miles on them since they were just a build and then takeoff. But I think the damage done of routing once through internal frame, removing, and then trying to route again internally was too much trauma on the cables. It wasn't bad, but just enough kinking and fraying that it kept getting caught and making it worse.

New cables today, hopefully out on the road tomorrow!

Wingnut
Posts: 2198
Joined: Sat Jun 23, 2007 12:41 am

by Wingnut

Reusing cables was fine back with down tube shifters but ergolevers are a pain.

joralieu
Posts: 5
Joined: Sat Jun 13, 2020 10:25 pm

by joralieu

My 12 speed record shifters came with only 2 pieces of deraileur cable housing. Should be 3, 2 for the shifters and one for the chainstay stop to the deraileur. Anyone else have this problem?

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ultimobici
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by ultimobici

joralieu wrote:My 12 speed record shifters came with only 2 pieces of deraileur cable housing. Should be 3, 2 for the shifters and one for the chainstay stop to the deraileur. Anyone else have this problem?
They should come with a full set of cables. Who did you buy them from?


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joralieu
Posts: 5
Joined: Sat Jun 13, 2020 10:25 pm

by joralieu

Glory Cycles, The cables are all there except for the rear derailleur housing from the chain stay stop to the rear derailleur.

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ultimobici
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by ultimobici

joralieu wrote:Glory Cycles, The cables are all there except for the rear derailleur housing from the chain stay stop to the rear derailleur.
Have you asked them?


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rudye9mr
Posts: 51
Joined: Wed May 01, 2019 12:01 pm

by rudye9mr

which shifter cables are allowed with 12 speed or only the maximum smoothness from campag? (can we use the ultra shift?)

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Kjetil
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Joined: Sat Jul 30, 2011 1:17 pm
Location: Hamar, Norway
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by Kjetil

Use only The Maximum Smoothness. They also improve 11s shifting I’m told.
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The Specialissima


rudye9mr
Posts: 51
Joined: Wed May 01, 2019 12:01 pm

by rudye9mr

Tx

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