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Date: 29 Sep 2006 10:30:39
From: Steve
Subject: You guys are the brains behind this operation . . .
. . . so maybe someone can help with a simple question.

Recently, my front derailleur refused to shift onto the largest
chainring up front so after doing a bit of research online, I turned
the screw on top of the derailleur--the screw on the left of the
two--one turn counterclockwise.

Problem solved, although now when I stand up to pedal up a hill, the
rear derailleur will occasionally bang into another gear.

Any thoughts as to whether my front derailleur repair is related to the
unwanted shifting incidents?

Finally, I just received a copy of "30 Bicycle Rides in New Jersey" the
other day, so on Sunday I'm thinking of doing the 11.6 mile tour in
Sandy Hook a few times for a total of 40-50 miles. If anyone cares to
join, just let me know as company is always welcome. I'm hoping to
keep an average pace of at least 16-19 MPH, depending on the wind and
whatever else.

Adios.





 
Date: 02 Oct 2006 16:16:09
From: nash
Subject: Re: You guys are the brains behind this operation . . .


>
> And his general article on derailer adjustment-
> http://sheldonbrown.com/derailer-adjustment.html
>
> Richard B.

If it is upshifting on the rear you turn clockwise to loosen the cable.
There is more tension on the chain on the bigger front sprocket which
causes the difference when you fixed the front.

I fixed mine coming home 3 days ago.



 
Date: 30 Sep 2006 03:06:53
From: Richard B
Subject: Re: You guys are the brains behind this operation . . .
"Steve" <okaywonderful@gmail.com > wrote in
news:1159551039.288275.194820@i3g2000cwc.googlegroups.com:

<snip >
>
> Problem solved, although now when I stand up to pedal up a hill, the
> rear derailleur will occasionally bang into another gear.
>
> Any thoughts as to whether my front derailleur repair is related to
> the unwanted shifting incidents?

<snip >
>

Steve,

See Sheldon Brown's article on automatic upshifting-
http://sheldonbrown.com/autoshift.html

And his general article on derailer adjustment-
http://sheldonbrown.com/derailer-adjustment.html

Richard B.


 
Date: 29 Sep 2006 19:32:36
From: bill
Subject: Re: You guys are the brains behind this operation . . .
Steve wrote:
> . . . so maybe someone can help with a simple question.
>
> Recently, my front derailleur refused to shift onto the largest
> chainring up front so after doing a bit of research online, I turned
> the screw on top of the derailleur--the screw on the left of the
> two--one turn counterclockwise.
>
> Problem solved, although now when I stand up to pedal up a hill, the
> rear derailleur will occasionally bang into another gear.
>
> Any thoughts as to whether my front derailleur repair is related to the
> unwanted shifting incidents?
>
> Finally, I just received a copy of "30 Bicycle Rides in New Jersey" the
> other day, so on Sunday I'm thinking of doing the 11.6 mile tour in
> Sandy Hook a few times for a total of 40-50 miles. If anyone cares to
> join, just let me know as company is always welcome. I'm hoping to
> keep an average pace of at least 16-19 MPH, depending on the wind and
> whatever else.
>
> Adios.
>
It is a matter of fine tuning both the stop screws and the shift cable
so you get the chain dead on when you shift. Adjust a little at a time
then go out for a few miles and see what happens under various
conditions. If that doesn't work, then carry some adjuster tools on your
next ride so you can catch it when it happens.
A small seat back pouch is more than enough for these small tools.
Bill Baka