Skipping Chain

D'ohBoy said:

Here's the setup:

new Record chain
new 13-26 Chorus cassette

Skipped horribly last night. Confounding factors:

- Had put an older but reasonably good Chorus 13-29 on for a hilly
century (put on the new chain on at same time)
- B screw was at limit to accomodate 13-29 with the short cage der
- forgot to reset B screw
- reset B screw last night during the ride and skipping went way down
but not away
- I change chains 'bout every 2000 miles or less and clean/lube
frequently

Never skipped EVER with the Wippermans I had been using. But the
attraction of the new narrow Campy chains (especially as a free Xmas
gift) was too much. And I measure my chains when I replace them and
they always seem to measure at or slightly UNDER (!?) the 12 inches/12
links standard (using a good caliper).

WTF?!

Maybe I shouldn't have gotten so excited about the new Record chain
(see prior post 'In praise of....'😉?

D'ohBoy

New chain and new cogset pretty much fixes any skipping chain issues.
Tight link? Skipping on all cogs or some specific ones?Spacers in the
right place thruout the cogset? B limit screw wouldn't make any
difference with regards to skipping. Something is not allowing the
chain to stay on the cogs selected. 'Skipping' you mean, staying on a
cog and 'jumping teeth', but not trying to move to another cog?

Qui si parla Campagnolo said:

D'ohBoy said:

Here's the setup:

Quoted message said:

new Record chain
new 13-26 Chorus cassette

Quoted message said:

Skipped horribly last night. Confounding factors:

Quoted message said:

- Had put an older but reasonably good Chorus 13-29 on for a hilly
century (put on the new chain on at same time)
- B screw was at limit to accomodate 13-29 with the short cage der
- forgot to reset B screw
- reset B screw last night during the ride and skipping went way down
but not away
- I change chains 'bout every 2000 miles or less and clean/lube
frequently

Quoted message said:

Never skipped EVER with the Wippermans I had been using. But the
attraction of the new narrow Campy chains (especially as a free Xmas
gift) was too much. And I measure my chains when I replace them and
they always seem to measure at or slightly UNDER (!?) the 12 inches/12
links standard (using a good caliper).

Quoted message said:

WTF?!

Quoted message said:

Maybe I shouldn't have gotten so excited about the new Record chain
(see prior post 'In praise of....'😉?

Quoted message said:

D'ohBoy

New chain and new cogset pretty much fixes any skipping chain issues.
Tight link? Skipping on all cogs or some specific ones?Spacers in the
right place thruout the cogset? B limit screw wouldn't make any
difference with regards to skipping. Something is not allowing the
chain to stay on the cogs selected. 'Skipping' you mean, staying on a
cog and 'jumping teeth', but not trying to move to another cog?

I did misuse skipping... it was trying to jump to another cog...
according to my riding buddies... had to stomp on it for it to happen.

Thanks for the suggestions of things to look at... I will check the
spacers and the rear der alignment...

Shifting was fine, and there was no noticeable chain noise, but when I
tried to accelerate hard, the chain (according to my buddies) would
jump about 3 cogs up...

Thanks, Peter.

D'ohBoy

D'ohBoy said:

Qui si parla Campagnolo said:

D'ohBoy said:

Here's the setup:
new Record chain
new 13-26 Chorus cassette
Skipped horribly last night. Confounding factors:
- Had put an older but reasonably good Chorus 13-29 on for a hilly
century (put on the new chain on at same time)
- B screw was at limit to accomodate 13-29 with the short cage der
- forgot to reset B screw
- reset B screw last night during the ride and skipping went way down
but not away
- I change chains 'bout every 2000 miles or less and clean/lube
frequently
Never skipped EVER with the Wippermans I had been using. But the
attraction of the new narrow Campy chains (especially as a free Xmas
gift) was too much. And I measure my chains when I replace them and
they always seem to measure at or slightly UNDER (!?) the 12 inches/12
links standard (using a good caliper).
WTF?!
Maybe I shouldn't have gotten so excited about the new Record chain
(see prior post 'In praise of....'😉?
D'ohBoy

New chain and new cogset pretty much fixes any skipping chain issues.
Tight link? Skipping on all cogs or some specific ones?Spacers in the
right place thruout the cogset? B limit screw wouldn't make any
difference with regards to skipping. Something is not allowing the
chain to stay on the cogs selected. 'Skipping' you mean, staying on a
cog and 'jumping teeth', but not trying to move to another cog?

I did misuse skipping... it was trying to jump to another cog...
according to my riding buddies... had to stomp on it for it to happen.

Thanks for the suggestions of things to look at... I will check the
spacers and the rear der alignment...

Shifting was fine, and there was no noticeable chain noise, but when I
tried to accelerate hard, the chain (according to my buddies) would
jump about 3 cogs up...

Thanks, Peter.

D'ohBoy

Jump 3 cogs up? And you blame the chain which worked perfectly with a
new cassette?

Lou
--
Posted by news://news.nb.nu (http://www.nb.nu)

Lou Holtman said:

D'ohBoy said:

Qui si parla Campagnolo said:

On May 10, 7:19 am, D'ohBoy <[email hidden]> wrote:

Quoted message said:

Quoted message said:

> Here's the setup:
> new Record chain
> new 13-26 Chorus cassette
> Skipped horribly last night. Confounding factors:
> - Had put an older but reasonably good Chorus 13-29 on for a hilly
> century (put on the new chain on at same time)
> - B screw was at limit to accomodate 13-29 with the short cage der
> - forgot to reset B screw
> - reset B screw last night during the ride and skipping went way down
> but not away
> - I change chains 'bout every 2000 miles or less and clean/lube
> frequently
> Never skipped EVER with the Wippermans I had been using. But the
> attraction of the new narrow Campy chains (especially as a free Xmas
> gift) was too much. And I measure my chains when I replace them and
> they always seem to measure at or slightly UNDER (!?) the 12 inches/12
> links standard (using a good caliper).
> WTF?!
> Maybe I shouldn't have gotten so excited about the new Record chain
> (see prior post 'In praise of....'😉?
> D'ohBoy
New chain and new cogset pretty much fixes any skipping chain issues.
Tight link? Skipping on all cogs or some specific ones?Spacers in the
right place thruout the cogset? B limit screw wouldn't make any
difference with regards to skipping. Something is not allowing the
chain to stay on the cogs selected. 'Skipping' you mean, staying on a
cog and 'jumping teeth', but not trying to move to another cog?

Quoted message said:

I did misuse skipping... it was trying to jump to another cog...
according to my riding buddies... had to stomp on it for it to happen.

Quoted message said:

Thanks for the suggestions of things to look at... I will check the
spacers and the rear der alignment...

Quoted message said:

Shifting was fine, and there was no noticeable chain noise, but when I
tried to accelerate hard, the chain (according to my buddies) would
jump about 3 cogs up...

Quoted message said:

Thanks, Peter.

Quoted message said:

D'ohBoy

Jump 3 cogs up? And you blame the chain which worked perfectly with a
new cassette?

Lou
--
Posted by news://news.nb.nu (http://www.nb.nu)

Ummmm... I might not have been clear enough but the issue (jumping)
did NOT occur with the new chain and used but fine 13-29 but DID occur
with the new chain and new 13-26 cassette.

Clear now?

D'ohBoy

D'ohBoy said:

Lou Holtman said:

D'ohBoy said:

On May 11, 7:49 am, Qui si parla Campagnolo <[email hidden]> wrote:
> On May 10, 7:19 am, D'ohBoy <[email hidden]> wrote:
>> Here's the setup:
>> new Record chain
>> new 13-26 Chorus cassette
>> Skipped horribly last night. Confounding factors:
>> - Had put an older but reasonably good Chorus 13-29 on for a hilly
>> century (put on the new chain on at same time)
>> - B screw was at limit to accomodate 13-29 with the short cage der
>> - forgot to reset B screw
>> - reset B screw last night during the ride and skipping went way down
>> but not away
>> - I change chains 'bout every 2000 miles or less and clean/lube
>> frequently
>> Never skipped EVER with the Wippermans I had been using. But the
>> attraction of the new narrow Campy chains (especially as a free Xmas
>> gift) was too much. And I measure my chains when I replace them and
>> they always seem to measure at or slightly UNDER (!?) the 12 inches/12
>> links standard (using a good caliper).
>> WTF?!
>> Maybe I shouldn't have gotten so excited about the new Record chain
>> (see prior post 'In praise of....'😉?
>> D'ohBoy
> New chain and new cogset pretty much fixes any skipping chain issues.
> Tight link? Skipping on all cogs or some specific ones?Spacers in the
> right place thruout the cogset? B limit screw wouldn't make any
> difference with regards to skipping. Something is not allowing the
> chain to stay on the cogs selected. 'Skipping' you mean, staying on a
> cog and 'jumping teeth', but not trying to move to another cog?
I did misuse skipping... it was trying to jump to another cog...
according to my riding buddies... had to stomp on it for it to happen.
Thanks for the suggestions of things to look at... I will check the
spacers and the rear der alignment...
Shifting was fine, and there was no noticeable chain noise, but when I
tried to accelerate hard, the chain (according to my buddies) would
jump about 3 cogs up...
Thanks, Peter.
D'ohBoy

Jump 3 cogs up? And you blame the chain which worked perfectly with a
new cassette?

Lou
--
Posted by news://news.nb.nu (http://www.nb.nu)

Ummmm... I might not have been clear enough but the issue (jumping)
did NOT occur with the new chain and used but fine 13-29 but DID occur
with the new chain and new 13-26 cassette.

Clear now?

Crystal.

Lou
--
Posted by news://news.nb.nu (http://www.nb.nu)

D'ohBoy said:

Qui si parla Campagnolo said:

On May 10, 7:19 am, D'ohBoy <[email hidden]> wrote:

Quoted message said:

Quoted message said:

Here's the setup:

Quoted message said:

Quoted message said:

new Record chain
new 13-26 Chorus cassette

Quoted message said:

Quoted message said:

Skipped horribly last night. Confounding factors:

Quoted message said:

Quoted message said:

- Had put an older but reasonably good Chorus 13-29 on for a hilly
century (put on the new chain on at same time)
- B screw was at limit to accomodate 13-29 with the short cage der
- forgot to reset B screw
- reset B screw last night during the ride and skipping went way down
but not away
- I change chains 'bout every 2000 miles or less and clean/lube
frequently

Quoted message said:

Quoted message said:

Never skipped EVER with the Wippermans I had been using. But the
attraction of the new narrow Campy chains (especially as a free Xmas
gift) was too much. And I measure my chains when I replace them and
they always seem to measure at or slightly UNDER (!?) the 12 inches/12
links standard (using a good caliper).

Quoted message said:

Quoted message said:

WTF?!

Quoted message said:

Quoted message said:

Maybe I shouldn't have gotten so excited about the new Record chain
(see prior post 'In praise of....'😉?

Quoted message said:

Quoted message said:

D'ohBoy

Quoted message said:

New chain and new cogset pretty much fixes any skipping chain issues.
Tight link? Skipping on all cogs or some specific ones?Spacers in the
right place thruout the cogset? B limit screw wouldn't make any
difference with regards to skipping. Something is not allowing the
chain to stay on the cogs selected. 'Skipping' you mean, staying on a
cog and 'jumping teeth', but not trying to move to another cog?

I did misuse skipping... it was trying to jump to another cog...
according to my riding buddies... had to stomp on it for it to happen.

Thanks for the suggestions of things to look at... I will check the
spacers and the rear der alignment...

Shifting was fine, and there was no noticeable chain noise, but when I
tried to accelerate hard, the chain (according to my buddies) would
jump about 3 cogs up...

Thanks, Peter.

D'ohBoy

Could also be the right lever as well. 'Clicks' crisp, as before or
somewhat vague? If a spring breaks or the spring carrier splits, the
lever doesn't hold the Rder onto a cog as effectively and frame flex
can shift the chain up/down.

Ummm.... move along, nothing to see here....

I bust software for a living and am having one of those red-faced
moments where I was so sure just seconds ago.... It is best to face
the music, suck it up and admit your error to the engineer.... or RBT,
as the case may be.

Let me say this about the new narrow Campy chains: they are TOO
good. Even way out of alignment, they are quieter than the Wipperman
6.1 mm chain ever was at best.

I adjusted the rear der yesterday and went for a ride. Perfect.
Quiet. Shifts like a dream. No auto-shifting. I did a short but
brutally steep climb and stood using what would normally be two gears
too high for the hill. No hopping.

Thanks, Peter, for considering my plight and offering your sage
advice.

D'ohBoy

"The American public has a right to expect competence from its
government."
-- John McCain
"Hell yeah!"
-- D'ohBoy

D'ohBoy said:

Ummm.... move along, nothing to see here....

I bust software for a living and am having one of those red-faced
moments where I was so sure just seconds ago.... It is best to face
the music, suck it up and admit your error to the engineer.... or RBT,
as the case may be.

Let me say this about the new narrow Campy chains: they are TOO
good. Even way out of alignment, they are quieter than the Wipperman
6.1 mm chain ever was at best.

I adjusted the rear der yesterday and went for a ride. Perfect.
Quiet. Shifts like a dream. No auto-shifting. I did a short but
brutally steep climb and stood using what would normally be two gears
too high for the hill. No hopping.

Thanks, Peter, for considering my plight and offering your sage
advice.

D'ohBoy

"The American public has a right to expect competence from its
government."
-- John McCain
"Hell yeah!"
-- D'ohBoy

No problema, what this NG is for....