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Tortured by Campy Record triple/ 10(12 posts)

Tortured by Campy Record triple/ 10ChazWicked
May 20, 2002 1:58 PM
This is a new campy setup so wear is not an issue. Riding in any gear is smooth and silent EXCEPT...

If riding in the lowest gear (small granny gear front & 27t cog in the rear) or 2nd lowest and under high load and add some bumps the chain will jump from the chainring into "neutral".

Given this happens under high load, it's always exciting.

Other information: Entire system is perfectly lubed, all of the links are smooth and there are no tight links, the entire system is campy record 10. The chainline looks ok.

Any thoughts.

ChazWicked
re: Tortured by Campy Record triple/ 10DougSloan
May 20, 2002 2:02 PM
where is "neutral"? inside or between gears?

Where did you get a campy 10 cassette with a 27 tooth?

Doug
re: Tortured by Campy Record triple/ 10ChazWicked
May 20, 2002 2:16 PM
Sorry, neutral as in, off the inside of the granny gear, resting on the BB shell. Re 27t record cassette, I stand corrected in that I went for a chorus 29t as $200+ for the piece seemed a little insane...forgot about that. I suppose the relevent bit is that it's all proper campy 10 speed with campy chain & such. There's no aftermarket or mix/match bits.

It typically takes a bump or whatever to start it but it will still happen on smooth road but only under high load.

-cw
re: Tortured by Campy Record triple/ 10DougSloan
May 20, 2002 2:26 PM
probably just the inner limit screw; I keep mine so that the cage barely touches the inside of the chain when on the largest cog; if that does not work, you probably need to adjust the angle of the derailleur so that it moves the chain to the small ring but doesn't touch the chain afterward; it took me some fiddling with it on the triple to get it right.

Doug
Is there a chain length issue? nmDaveL
May 20, 2002 3:00 PM
No. I used the standard approach of...ChazWicked
May 20, 2002 3:17 PM
measuring big-big and then adding a link. I also have played with the adjustment that tensions the jockey wheel cage. Too high of a tension & the upper jockey wheel bounces noisily along the cassette. For testing purposes, I overtensioned such that it did make contact but the problem remained so I set it as per campy spec. Specifically, adjust until the wheel pulls away from the cogs.

cw
Sorry, but what the h@ll are youAFred
May 20, 2002 4:17 PM
doing with a 27 or 29 tooth cog in your cassette? That's beyond alpine. If you still have the little booklet that came with your rear derailleur, check to see if it can handle the gear ratios in your set-up. You may need a long throw cage, and I don't know if those are made in the Record lineup; perhaps in the triple group. If I understand your setup now, your not going to get a smooth run/shifting onto that large cog no matter how much you adjust limit screw.
29 works fine with RecordColnagoFE
May 21, 2002 7:13 AM
and it is a fine alternative to a triple if you ask me. Just make sure you use the Record medium cage der. It will work with the standard der, but if you happen to shift into a big/big combo you'll toast the drivetrain.
are you using the medium cage der with the 29? (nm)ColnagoFE
May 21, 2002 7:11 AM
re: Tortured by Campy Record triple/ 10mackgoo
May 20, 2002 9:42 PM
Regardless with the limit screw corectly set the chain will not come off to the inside.
could it have anything to do with the 30:29 ratio? nmdustin73
May 20, 2002 10:21 PM
front derailleur allignment criticalmhinman
May 21, 2002 4:40 AM
I have a 11-23 with a triple, and I found that the front derailleur alignment is very critical. Also check that you have an long cage derailleur, the distance between the jockey wheel axles should be about 88mm. And last but not least, check the limit screws.