Re: [RBW] Ghost shifting on the Clem

[Patrick Moore]

I feel your pain. I've suffered from that very elusive problem many times,
and gave forth a great deal of cussing before I wised up to the cause. The
problem is all the worse in that sometimes the chain will track fine in the
stand, and only start skipping when torque is applied. I took to rotating
the chain backward through my fingers to find the stiff link by feel.

Now that I use masterlinks almost exclusively, I don't have to worry, and
when I do reinstall a pin, I take proactive care to loosen the link when I
install the chain.

The stiff link ranks with punctures caused by slipping rim tape as the top
frustraters of bike maintenance.

On Sun, Apr 19, 2020 at 1:56 PM Wayne Naha  wrote:

> I should have posted this a while ago, when I figured this out, but that
> clearly didn't happen.  Now with lots of time on my hands, why not?  I had
> posted a coupe of times about the shifting problems the Clem was having.
> Ghost shifting, never wanting to settle down on a cog, very sensitive to
> the slightest input from the shifter, etc.  At first, I blamed myself.  The
> last time I had friction shifted was back when five cogs in the rear were
> standard.  I figured that I just wasn't doing it right.  I had tightened
> the screw on the hex bolt on the stock shifters to prevent them from
> slipping.  This reduced the problem some, but did not eliminate it.  For
> some time, I rode the Clem as a single speed, since when I would finally
> get the drive train happy, I never wanted to disturb it again.  This was,
> of course, unsatisfactory.  And even though I had been told that the rear
> derailer was not the cause of this problem, I began giving the wonky
> looking Claris RD the stink eye.  Finally, I decided to replace it.  Even
> though it could not be the cause of the problem.  I did have what I thought
> was a sexier looking Deore LX RD in my parts bin.  If I was doomed to have
> a chattering drive train, it would be with a nicer RD.  But it was in the
> process of changing out the RD that the root cause of my problem was
> revealed.  For as I am adjusting the travel of the derailer, and running
> the chain through, lo and behold I discover there is a frozen link in the
> chain!
> After a few minutes of flexing the chain, the frozen link is freed, and I
> finish the install.  Now, when I go for the test ride, my Clem is
> blissfully silent!  Shifting is a breeze!  I can have any gear I want!
> Now, some of you old hands at bike maintenance are probably saying to
> yourselves, "Of course, you big dummy!  You should have checked that right
> away!"  Probably true, but I never expected this on a new chain.  I've only
> seen this on old, beat, rusty chains.  Anyway, I have since apologized to
> the Claris for wronging it in my heart, but it's still not going back on my
> Clem.  The Deore remains completely better looking.
>
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> .
>


-- 

---
Patrick Moore
Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum

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[RBW] Ghost shifting on the Clem

[Joe Bernard]

Ah yes, this can certainly be an issue at the quick-link on a new chain. I 
don't know if that was where your problem was, but I recently installed a new 
8-speed KMC chain on my Frank Jones and it took a couple reconnects and 
bendings to free it up. 

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[RBW] Ghost shifting on the Clem

[Wayne Naha]

I should have posted this a while ago, when I figured this out, but that 
clearly didn't happen.  Now with lots of time on my hands, why not?  I had 
posted a coupe of times about the shifting problems the Clem was having.  
Ghost shifting, never wanting to settle down on a cog, very sensitive to 
the slightest input from the shifter, etc.  At first, I blamed myself.  The 
last time I had friction shifted was back when five cogs in the rear were 
standard.  I figured that I just wasn't doing it right.  I had tightened 
the screw on the hex bolt on the stock shifters to prevent them from 
slipping.  This reduced the problem some, but did not eliminate it.  For 
some time, I rode the Clem as a single speed, since when I would finally 
get the drive train happy, I never wanted to disturb it again.  This was, 
of course, unsatisfactory.  And even though I had been told that the rear 
derailer was not the cause of this problem, I began giving the wonky 
looking Claris RD the stink eye.  Finally, I decided to replace it.  Even 
though it could not be the cause of the problem.  I did have what I thought 
was a sexier looking Deore LX RD in my parts bin.  If I was doomed to have 
a chattering drive train, it would be with a nicer RD.  But it was in the 
process of changing out the RD that the root cause of my problem was 
revealed.  For as I am adjusting the travel of the derailer, and running 
the chain through, lo and behold I discover there is a frozen link in the 
chain!
After a few minutes of flexing the chain, the frozen link is freed, and I 
finish the install.  Now, when I go for the test ride, my Clem is 
blissfully silent!  Shifting is a breeze!  I can have any gear I want!  
Now, some of you old hands at bike maintenance are probably saying to 
yourselves, "Of course, you big dummy!  You should have checked that right 
away!"  Probably true, but I never expected this on a new chain.  I've only 
seen this on old, beat, rusty chains.  Anyway, I have since apologized to 
the Claris for wronging it in my heart, but it's still not going back on my 
Clem.  The Deore remains completely better looking.

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