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Campy 10, Any derailleur tuning advice?(9 posts)

Campy 10, Any derailleur tuning advice?Helduser
Mar 28, 2002 11:56 AM
I've got a brand new Chorus 10 on my road bike. It's really sweet but it's starting to get a little noisy in certain gears. I especially hear noise when I'm in 39x17.
Before I totally mess it up I thought I'd ask for some advice on the right way to get my gears back inline.

My rear cassette is 12-25 and my front rings are 39-53.

Thanks in advance.
re: Campy 10, Any derailleur tuning advice?mackgoo
Mar 28, 2002 2:32 PM
Just follow the directions in the manual. If you don't have a manual go to look in their tech section. Really very easy.
re: Campy 10, Any derailleur tuning advice?Helduser
Mar 29, 2002 11:40 AM
Thanks I'll check that out.
re: Campy 10, Any derailleur tuning advice?Chen2
Mar 28, 2002 3:36 PM
I'm not a Campy guy but with any new bike it's common for the shift cables to stretch and this might account for your noise and/or shifting problems. If you bought the bike from a dealership you should get a free tune-up.
re: Campy 10, Any derailleur tuning advice?Helduser
Mar 29, 2002 11:43 AM
I appreciate the input. I'm planning on doing that at some point but I recently purchased a workstand. I figure that if you own a bike that's good enough to be raced you had better understand how to tune it properly. I figure I'll learn how to do it right now. The worst that can happen is that I totally mess it up and then I have the free tune-up to fall back on.
re: Campy 10, Any derailleur tuning advice?DY
Mar 28, 2002 6:47 PM
It's actually really easy. The top and bottom gear are set by the set screws on the derailleur (these you don't have to worry about here) The "in between gears" are adjusted where the cable enters the derailleur. There is a knob that has a spring. You can turn it in and out to tension or reduce tension on the cable. I usually work with my 19 gear and then my 16. I think Campy specifies doing this from the 5th gear down from your largest sproket. I do it by ear. While turning the crank, count the half turns that you turn clockwise until the noise increases and it begins to want to jump gears. Then I do it counter clockwise. I usually try to find a happy medium so that all my gears work well and are quiet.
re: Campy 10, Any derailleur tuning advice?Helduser
Mar 29, 2002 11:46 AM
Thanks. I'll give that a shot. I hope it's that easy.
re: Campy 10, Any derailleur tuning advice?Ken
Mar 29, 2002 8:59 PM
I've got the same setup as you. When the RD goes out of sync it could be a real pain to get it back to its "smooth as butta" state. Of course go for the easy fix first by playing with the adjusting barrels. Make sure the lock ring on the cassette isn't loose. Make sure the freewheel is not loose. If after checking that the lock ring and freewheel are not loose and that after fiddling with the cable barrel adjuster you find that the sound doesn't go away then you have to start from scratch with the RD.

Scratch method:

1. with the chain on the small chainring shift down to the smallest cog.
2. turn the downtube barrel adjuster for the RD to its most lax position.
3. detach the cable from the RD.
4. use the adjustment screws on the RD to make sure the jockey wheel closest to the smallest cog is "PERFECTLY PERPENDICULAR" with the smallest cog.
5. put the chain back on and reattach the cable to the RD.
6. try shifting on to the big cog. You may need to use the adjustment screws on the RD to get it right.
7. shift to cog 4 to center the chain line using the RD barrel adjuster.

The above steps worked for me. Being an amature wrench this process took me a good two hours.

Good luck,
re: Campy 10, Any derailleur tuning advice?Bennnny
Apr 2, 2002 9:43 PM
I've been working and servicing campy components for a couple of years now so I know them a lot.

If your in at about 8000/10000 km your chain and sprockets are finished you have to change them.

If so lube your shifting cables especially the back one after putting all the new stuff

If not, I've been noticing that campy are a little bit noisyer then shimano, but the noise is maybe because your rear dropout is a little bit bended.

Campy rear der has to be perfectly alined to be smooth.