Front XT derailler shifting is jerky



G

Glyph

Guest
Hi Guys,

I have just installed a new Shimano XT front derailler on my mountain
bike. I believe I have set it all up and adjusted the adjustment screws
correctly.

My only concern is that when I down shift it really 'snaps' the
derailler back and makes quite a clank. Especially when downshifting
from middle sprocket to smallest. I have played with the cable tension
but it doesn't seem to change much. It appears to be just from the
spring pulling the deraiiler back to it's default state . Is this
normal? I'm assuming this will soften up as I use the derailler more?

Any advice is appreciated.

Cheers,
Glyphism
 
L

Llatikcuf

Guest
Glyph wrote:
> Hi Guys,
>
> My only concern is that when I down shift it really 'snaps' the
> derailler back and makes quite a clank. Especially when downshifting
> from middle sprocket to smallest.


In my experience this is the derailleur snapping back and hitting the
frame. A small amount of tension of the inside shift screw is usually
the cure.

Hope it helps,

-nate
 
G

Glyph

Guest
just tried and it didn't do much. It's well clear of the tube, both
before and after.
 
L

Lou Holtman

Guest
"Glyph" <[email protected]> wrote in message
news:[email protected]
> just tried and it didn't do much. It's well clear of the tube, both
> before and after.


The (XT) front derailleur has a pretty strong return spring so I think there
is nothing to worry about.

Lou
 
Q

Qui si parla Campagnolo

Guest
Glyph wrote:
> Hi Guys,
>
> I have just installed a new Shimano XT front derailler on my mountain
> bike. I believe I have set it all up and adjusted the adjustment screws
> correctly.
>
> My only concern is that when I down shift it really 'snaps' the
> derailler back and makes quite a clank. Especially when downshifting
> from middle sprocket to smallest. I have played with the cable tension
> but it doesn't seem to change much. It appears to be just from the
> spring pulling the deraiiler back to it's default state . Is this
> normal? I'm assuming this will soften up as I use the derailler more?
>
> Any advice is appreciated.
>
> Cheers,
> Glyphism


It is normal as the shifter is just releasing the cable tension and the
front der is returning to where the limit screw tells it to go. The
noise may be it hitting the seattube.

May try to move it out a hair, and see if it still gets the chain where
it ought to be in the middle and big ring.
 
D

Diablo Scott

Guest
And you'll appreciate that strong spring when the mech is crusted up
with mud. I like to hear that strong snapping sound.