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Ultegra shifter problem

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Old April 17th 10, 02:54 AM posted to rec.bicycles.tech,rec.bicycles.misc
z, fred
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Posts: 185
Default Ultegra shifter problem

Mike Jacoubowsky wrote:
"gary" wrote in message
i have a problem with my shifter that started at the end of last fall
that i think i know what the problem is but am looking for

bike is about 7 years old with ultegra 6500 shifters.

the issue is with my right shifter (i.e. back cassette) when i shift
into a higher gear (i.e. smaller cog). the shift works ok but when i
eventually want to shift back to a lower gear and swipe the large
lever for the next lowest gear it does not "catch". i have to swipe
the large levere all the way (to the left) before it will catch and i
can feel resistance on the shifter. at that point i can hit the
shifter to shift to the next lowest gear. i'm guessing (hoping) that
it is just cable slack that i can adjust.

does this sound just like the cable has to be tighten (?) by adjusting
the knob near the rear derailleur?


Flush it with Powerlube, available at fine auto parts stores everywhere
(well, NAPA anyway!). Amazing stuff; brings back to life far more levers
than WD40 ever did. Sometimes you have to play with it for quite a while
before it starts working again. And some levers just can't be brought
back to life.

In general, the problem seems to come up with bikes that haven't been
used for a while. Very rare to see it on bikes in continuous use.

But it's not a cable adjustment issue.

One other thing to look at is the condition of the cable. If it's
beginning to fray, you will sometimes be able to shift to a larger cog
but not back down to a smaller one. But in that situation, the lever
will still likely "click" when you try to shift to the smaller sprocket.

--Mike-- Chain Reaction Bicycles

Just bought some Powerlube from NAPA on your recommendation. I don't
know if this is nationwide, but it was about 50% off so I bought two.

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