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need help adjusting rear derailleur 10 speed(5 posts)

need help adjusting rear derailleur 10 speed53x12
Apr 16, 2002 7:41 PM
I just hooked up my daytona 10 speed and have been struggling on getting it to shift right. All the cogs shift good except the 2nd from small cog and the 2nd from the high cog. the 2nd from the small cog needs tightening while the other needs loosening. I tighten/loosen one it makes the other cog worse. Any ideas on what I might be doing wrong? This is my first stint at indexing ..all my other bikes are friction.
re: need help adjusting rear derailleur 10 speed53x12
Apr 16, 2002 7:58 PM
One thing I think it may be is that I have a campy chorus 10 speed cassette 13-26. I was told that daytona 10 speed would work with this cassette. May this be the problem?
re: need help adjusting rear derailleur 10 speedRichC
Apr 17, 2002 5:24 AM
I had a pretty similar problem with a Chorus 10 spd set up (see thread "Chorus rear derailleur woes" some time ago). What solved the problem for me was a complete strip down of all cables and making sure they were all free moving, with perfectly straight ends and no obstructions.

The Daytona 10 spd cassette should work perfectly with the Chorus cassette as it has exactly the same dimensions as other 10 spd cassettes. Check that the cassette is correctly seated on the freehub, with all spacers in place and that it is appropriately torqued down.

What wheels are you using? Is the hub 10 spd? If recent Daytona hubs these will work with 9 or 10 speed. If you have a cassette with an 11 sprocket, I think this needs a different lock ring also.

Other possible causes are:

1)Not using 10 spd chain
2)Bent derailleur
3)Bent rear derailleur hanger
4)Too short a cable between boss on chain stay and rear derailleur (don't shorten the 330mm piece that comes in the ergo cable set)
5)Cable connected to the wrong side of the bolt on the rear derailleur (see diagram in Campag instruction sheet)

Hope this helps, mine was driving me mad until I sorted it!
re: need help adjusting rear derailleur 10 speed53x12
Apr 17, 2002 6:34 AM
Thanks Rich!

At least I have a bunch of new things to try when I get home. I have 2001 daytona hubs and a brand new 10 speed rear derailleur, and a 10 speed chain: So I can eliminate some of those things. I did shorten the cable a little b/w the boss and RD. On the cable connection I have it connecting on the inside of the nut (closest to the cassette). I think this is right. Anyhow, thanks for the info. I'll let you know if I get it running right.
are you following Campy's procedure?RideLots
Apr 17, 2002 6:49 AM
At least give their procedure a try:

http://www.campagnolo.com/pdf/REAR_DERAILLEUR.pdf