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Campagnolo Derailleur

Old 01-29-17, 04:41 AM
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parnstermia
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Campagnolo Derailleur

Hi, I´ve a road bike with campagnolo xenon with 2x9 (outdated) but I have a problem with the derailleurs, let me explain.

When I push the shift to change plate/gear I have to push it a lot like 90º in the case of plates.

Why is this? should I change the cables? adjusts tension?

They work fine but need a big push and I´m afraid of damaging the ¿¨hangers¨?

I'm not native speaker, sorry if I make many mistakes :S

Thank you in advance, Parnstermia

Last edited by parnstermia; 01-29-17 at 06:31 AM.
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Old 01-29-17, 06:04 AM
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I forgot to say that my bikes has ~10 years or so

I'm going to upload some pictures so you can see what troubles me.
As I can't post urls without 10 post, I had to put some spaces in between the links

bike picture -----> i. imgur . com/6VF8K5x .jpg
first picture -----> i. imgur . com/kvuQiCn .jpg
second picture --> i. imgur . com/TSMpYTm .jpg

In the first picture you can see the shifter angle (so big)
In the second picture you can see a little crack in the hanger caused by the pushing shifter
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Old 01-29-17, 09:04 AM
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Sorry but I won't link to unknown urls but... if you disconnect the cable and work the shifting by hand by pushing on the der what happens? When you grab the loose cable by one hand and run through the lever's range what happens? It's hard to fully understand your descriptions but it might be a lever/shifter internal problem. Campy Ergo (and we don't even know if that's your shifter version) is well known for needing internal maintenance periodically. Andy.
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Old 01-29-17, 09:08 AM
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When you shift to the small chainring is there any slack in the shifter cable?
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Old 01-29-17, 09:20 AM
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parnstermia
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Originally Posted by Facanh View Post
When you shift to the small chainring is there any slack in the shifter cable?
The cable isn't very tight but isn't loose, I can move it fairly easily
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Old 01-29-17, 09:24 AM
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Originally Posted by Andrew R Stewart View Post
Sorry but I won't link to unknown urls but... if you disconnect the cable and work the shifting by hand by pushing on the der what happens? When you grab the loose cable by one hand and run through the lever's range what happens? It's hard to fully understand your descriptions but it might be a lever/shifter internal problem. Campy Ergo (and we don't even know if that's your shifter version) is well known for needing internal maintenance periodically. Andy.
I don't know what mechanism has Campagnolo Xenon, there isn't much info about it either since it's quite old

I haven't tryed it cause i didn't want to **** it up without know what can be the problem, although I'm going to try to the some info about the internal maintenance
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Old 01-29-17, 09:29 AM
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Originally Posted by parnstermia View Post
I don't know what mechanism has Campagnolo Xenon, there isn't much info about it either since it's quite old

I haven't tryed it cause i didn't want to **** it up without know what can be the problem, although I'm going to try to the some info about the internal maintenance
It's old but there is tons of info available. All of the shifters of this era used the same or very similar internals.

Just an example:

Ergo Shifter Rebuild (Campagnolo) | cyclecycle.info
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Old 01-29-17, 09:37 AM
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Originally Posted by Facanh View Post
It's old but there is tons of info available. All of the shifters of this era used the same or very similar internals.
That's pretty cool actually. I managed to attach the pictures
Attached Images
File Type: jpg
photo_2017-01-29_13-58-20.jpg (98.0 KB, 49 views)
File Type: jpg
photo_2017-01-29_13-58-24.jpg (85.7 KB, 49 views)
File Type: jpg
asasddasdasda.jpg (90.1 KB, 49 views)
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Old 01-29-17, 02:02 PM
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You have what are know as "Escape Type" shifters. These shifters are not (officially) serviceable. Most cases of damage in practice require the shifter body to be replaced. That is the bad news.

The good news is that the problem you have looks like a simple case of insufficient cable tension so I don't think you have a shifter problem ...

OK, to fix it ...

I am assuming that the front derailleur is attached to the bike at the right height and at the right angle. It is difficult with the barrier of language, so I would say if you are not sure about this, to go to your local bike shop and get them to check - if the height and angle are wrong, it is not possible to get the front derailleur to work properly. Normally, if the front derailleur is fitted correctly in the first place, it will not move - but it is not impossible that it can move if fitting is not done correctly - so, if you are not sure - get someone who knows how it should be to check it.

Push the small thumb lever down several times to make sure that all the tension in the front derailleur cable is definitely released. This should mean that if you turn the pedals, the chain will be on the small chainring.

When you are on the small (inside) chain ring at the front and the biggest sprocket at the back, looking from the side of the bike where the gears are (the "gear side") there should be a gap between the back of the chain and the back plate of the front derailleur of about 1 mm. If the gap is bigger than that, use a screwdriver to tighten the screw nearest the frame on the top of the front derailleur cable until a 1 mm gap is created. If the gap is less (I don't think it will be), undo that screw.

Adjust the front gear cable tension (there is an adjuster at the front of your bike just behind the head tube, on the diagonal tube - to tighten the cable, turn the adjuster anti-clockwise. Tighten in several small steps so that, when you turn the pedals and move the left hand shift lever 3 clicks (about 45 degrees from vertical), the chain gets up onto the big (outside) chainring. If the front derailleur does not move far enough with 3 clicks, go back to the inside ring as I described above and tighten the cable a little more. In any Campagnolo system, you should only need 3 clicks to change from one chainring at the front to the next.

Once the chain will go cleanly from the small chainring to the big when you are on the biggest sprocket at the back, leave the chain on the big chainring at the front and shift to the smallest sprocket at the back. Now you should see a gap of about 1 mm between the outside of the chain and the outside plate of the front derailleur. If the gap is less, manually pull the gear cable under the down tube - if the derailleur moves out when you pull the cable, go back to the small ring and try tightening the cable a little more, then re-try the shift small to big. When you get that 1 mm gap, turn the screw on the top of the front derailleur that is away away from the frame (i.e. the one you may not have not moved yet) clockwise until it stops, then anticlockwise 1/4 turn. Then retry the small to big ring shift in every gear. It should work correctly in all gears, without the chain going over the top of the big chainring.

It is important that when you are setting the gears up, you turn the pedals and shift like you do when you are riding - turning the pedals really slowly and moving the gear lever gently are not what you do when you ride and won't give you a correct set up - so turn the pedals at maybe 60 - 80 rpm and move the lever positively (not roughly).

Again, if you are not sure at any stage, if something is not clear, please look for help from a bike shop.

I hope this helps you. It looks like you are in Spain? If so and you are not sure, please contact Campagnolo Spain - my colleague Davide there will help you for sure.

Last edited by gfk_velo; 01-29-17 at 02:05 PM.
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Old 01-29-17, 02:49 PM
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"in the case of plates"??? WTF????
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Old 01-29-17, 04:07 PM
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Originally Posted by AlexCyclistRoch View Post
"in the case of plates"??? WTF????
As a non native English speaker, OP may mean chainrings, or cassette cogs
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