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Date: 10 May 2007 06:19:08
From: D'ohBoy
Subject: Skipping Chain
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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
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Date: 14 May 2007 05:03:09
From: Qui si parla Campagnolo
Subject: Re: Skipping Chain
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On May 13, 10:21 am, D'ohBoy <peteng...@yahoo.com > wrote: > 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....
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Date: 13 May 2007 09:21:38
From: D'ohBoy
Subject: Re: Skipping Chain
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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
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Date: 12 May 2007 05:09:46
From: Qui si parla Campagnolo
Subject: Re: Skipping Chain
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On May 11, 7:07 am, D'ohBoy <peteng...@yahoo.com > wrote: > On May 11, 7:49 am, Qui si parla Campagnolo <p...@vecchios.com> wrote: > > > > > On May 10, 7:19 am, D'ohBoy <peteng...@yahoo.com> 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 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.
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Date: 11 May 2007 08:35:50
From: D'ohBoy
Subject: Re: Skipping Chain
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On May 11, 10:13 am, Lou Holtman <lholremovet...@planet.nl > wrote: > D'ohBoy wrote: > > On May 11, 7:49 am, Qui si parla Campagnolo <p...@vecchios.com> wrote: > >> On May 10, 7:19 am, D'ohBoy <peteng...@yahoo.com> 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? D'ohBoy
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Date: 11 May 2007 21:02:53
From: Lou Holtman
Subject: Re: Skipping Chain
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D'ohBoy wrote: > On May 11, 10:13 am, Lou Holtman <lholremovet...@planet.nl> wrote: >> D'ohBoy wrote: >>> On May 11, 7:49 am, Qui si parla Campagnolo <p...@vecchios.com> wrote: >>>> On May 10, 7:19 am, D'ohBoy <peteng...@yahoo.com> 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)
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Date: 11 May 2007 06:07:12
From: D'ohBoy
Subject: Re: Skipping Chain
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On May 11, 7:49 am, Qui si parla Campagnolo <p...@vecchios.com > wrote: > On May 10, 7:19 am, D'ohBoy <peteng...@yahoo.com> 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
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Date: 11 May 2007 17:13:11
From: Lou Holtman
Subject: Re: Skipping Chain
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D'ohBoy wrote: > On May 11, 7:49 am, Qui si parla Campagnolo <p...@vecchios.com> wrote: >> On May 10, 7:19 am, D'ohBoy <peteng...@yahoo.com> 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)
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Date: 11 May 2007 05:49:45
From: Qui si parla Campagnolo
Subject: Re: Skipping Chain
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On May 10, 7:19 am, D'ohBoy <peteng...@yahoo.com > 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?
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