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Campy 10 chain skipping on small cog(19 posts)

Campy 10 chain skipping on small cogDougSloan
Jul 21, 2002 5:26 PM
Campy 10 speed 11 tooth cog skips all the time, even under medium power. Shift to 12, no skipping. Replaced the cog with another 11, and it skips, too. Neither cog looks very worn (after all, they are steel, and I don't hammer in the 11 that much). Chain is relatively new (Wipperman). Adjusted cable tension and lower limit screw to no effect. Adjusted the b-limit screw (on the Record rear derailleur), and no effect. Does it in both the 53 and 42 ring. Chain is not too long. I'm out of ideas. Any help? Thanks.

loose lock nut? chainline? shifter lever? nmishmael
Jul 21, 2002 5:47 PM
loose lock nut? chainline? shifter lever?DougSloan
Jul 21, 2002 7:18 PM
loose lock nut? no way; checked several times

chainline? don't know how; nothing has changed

shifter lever? same thing; chain appears to be in correct place

thanks for ideas, though
rear derailleur alignment correct ?Leroy
Jul 21, 2002 10:24 PM
Is the read der. parallel with the 11 cog as viewed from the back? It will adjust with cable tension toward or away from the wheel. I think it should be lined up with the 11 cog. It may be trying to shift up to 12. Try using the adjuster at the derailleur. The little instr. flyer may say something about how to do it upon set-up. Good luck.

Dave Loving
Are you using the same lock nut from your 12-25 cassette?MXL02
Jul 22, 2002 11:04 AM
I had the same problem, took it to my local wrench head, who figured it immediately. I had used an old lock nut from a generic cassette. It is too big and interferes with the chain engaging the 11 gear. Just get the official campy 11 lock nut and it should work. Good luck.
Jul 22, 2002 11:13 AM
Cassettes with an 11 use a different lockring. Have you swapped cassettes but not the lockring?

I'll double check, but I dont think so; thanks nmDougSloan
Jul 22, 2002 2:49 PM
That's too bad, it was a great solution.Alex-in-Evanston
Jul 23, 2002 6:17 AM
Very elegant, slightly obscure. It had it all.

swapped out cassette and no problemDougSloan
Jul 22, 2002 6:46 PM
Changed to a 12-25 cassette, and no skipping on the small cog now. I was definitely using the 11 lockring with the 11, and now the 12 with the 12. Changed nothing else. I don't get it.
Just had a bad cassette. nmLeroy
Jul 23, 2002 3:36 AM
did it on 2 diff 11 tooth cogs, though nmDougSloan
Jul 23, 2002 5:34 AM
How do you know it was an 11 lockring.MXL02
Jul 23, 2002 3:39 AM
They may have sold you the wrong one. All I can say is that I had exactly the same problem, and as soon as I changed the lockring, problem resolved.
Jul 23, 2002 5:33 AM
I have about 5 10 speed cassettes. The 11 lockrings are about 1/8" smaller in diameter. Hold them together, and it's very clear which is which. Thanks.
swapped out cassette and no problemgrandemamou
Jul 23, 2002 4:27 AM
This may not be much help. But you are not alone.
did the 11 skip with the Campy chain??? nmJohnG
Jul 23, 2002 7:08 AM
Jul 23, 2002 7:39 AM
To be safe, I just ordered another genuine Campy chain. If it doesn't skip, then we'll know something. Thanks.

Jul 23, 2002 3:09 PM
Yeah please let us know if the 11 does not work with the Wipperman. thanks
Jul 23, 2002 3:48 PM
When you get the campy chain, compare the shape of the plates in the chain. The Wipp. may not be designed to wrap around that tite a radius, therefore it would be noisy. Chains really don't like wrapping small sprockets and efficiency suffers. I learned that fooling with motorcycles.
re: Campy 10 chain skipping on small cogKen
Jul 24, 2002 12:01 AM
Did you check that the freewheel body is snug against the hub?

Kenny Lee