Stumpjumper FSR Chainsuck

Michael Steger said:

Hi

I've got a 2002 Specialized Stumpjumper FSR. When I ride on plain trails with a lot of roots to
cross I constantly get a chainsuck at the rear cassette (no problems at the front chainrings). The
chain slips down several rear chainrings. This occurs while pedaling and is even worse without
pedaling.

I'm slightly confused. Chainsuck occurs on the front rings, and an equivalent on the rear would mean
the cogs on the cassette holding the chain, wrapping it round and jamming the rear transmission.

Normal slippage during pedalling would normally mean your rear derailleur needs adjusting, but I'm
at a loss to explain why the chain would jump several cogs without pedalling.

Quoted message said:

The problem is not related to worn down chain/cassette, I encountered it right out of the box.

When you say 'right out of the box', does that imply that it wasn't set up by a proper mechanic?

I would suggest that maybe a visit to the LBS is in order.

--
a.m-b FAQ: t-online.deambfaq.htmOpen ↗

b.bmx FAQ: t-online.debmx faq.htmOpen ↗

I'm sorry, confusion may be a result of my deficits in English language. I'll try to put
things right.

"bomba" <[email hidden]> schrieb im Newsbeitrag "]news:[email hidden]...

Quoted message said:

Michael Steger said:

Hi

I've got a 2002 Specialized Stumpjumper FSR. When I ride on plain trails with a lot of roots to
cross I constantly

get a

Quoted message said:

Quoted message said:

chainsuck at the rear cassette (no problems at the front chainrings).

The

Quoted message said:

Quoted message said:

chain slips down several rear chainrings. This occurs while pedaling and

is

Quoted message said:

Quoted message said:

even worse without pedaling.

I'm slightly confused. Chainsuck occurs on the front rings, and an equivalent on the rear would
mean the cogs on the cassette holding the chain, wrapping it round and jamming the rear
transmission.

Chainsuck may be the wrong word here. The chain does not wrap around the cassette, it is slipping
down some cogs.

Quoted message said:

Normal slippage during pedalling would normally mean your rear derailleur needs adjusting, but I'm
at a loss to explain why the chain would jump several cogs without pedalling.

The derailleur is adjusted correctly, switching up and down is very smooth. The problem occurs when
I ride over a series of hard roots on the trail.

Quoted message said:

Quoted message said:

The problem is not related to worn down chain/cassette, I encountered it right out of the box.

When you say 'right out of the box', does that imply that it wasn't set up by a proper mechanic?

The bike was set up correctly by my dealer, I just intended to say that I have the problem from the
very beginning on.

Quoted message said:

I would suggest that maybe a visit to the LBS is in order.

My bike dealer is riding a Stumpjumper FSR, too. He has the same problems, although he is an
excellent mechanic. I just thought that maybe someone else has found a solution to this
annoying problem.

Michael

Quoted message said:

--
a.m-b FAQ: t-online.deambfaq.htmOpen ↗

a.bmx FAQ: t-online.debmx faq.htmOpen ↗

"Michael Steger" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

I'm sorry, confusion may be a result of my deficits in English language. I'll try to put
things right.

"bomba" <[email hidden]> schrieb im Newsbeitrag "]news:[email hidden]...

Quoted message said:

Michael Steger said:

Hi

I've got a 2002 Specialized Stumpjumper FSR. When I ride on plain trails with a lot of roots
to cross I constantly

get a

Quoted message said:

Quoted message said:

chainsuck at the rear cassette (no problems at the front chainrings).

The

Quoted message said:

Quoted message said:

chain slips down several rear chainrings. This occurs while pedaling

and

Quoted message said:

is

Quoted message said:

Quoted message said:

even worse without pedaling.

I'm slightly confused. Chainsuck occurs on the front rings, and an equivalent on the rear would
mean the cogs on the cassette holding the chain, wrapping it round and jamming the rear
transmission.

Chainsuck may be the wrong word here. The chain does not wrap around the cassette, it is slipping
down some cogs.

Quoted message said:

Normal slippage during pedalling would normally mean your rear derailleur needs adjusting, but
I'm at a loss to explain why the chain would jump several cogs without pedalling.

The derailleur is adjusted correctly, switching up and down is very

smooth.

Quoted message said:

The problem occurs when I ride over a series of hard roots on the trail.

Quoted message said:

Quoted message said:

The problem is not related to worn down chain/cassette, I encountered

it

Quoted message said:

Quoted message said:

Quoted message said:

right out of the box.

When you say 'right out of the box', does that imply that it wasn't set up by a proper mechanic?

The bike was set up correctly by my dealer, I just intended to say that I have the problem from
the very beginning on.

Quoted message said:

I would suggest that maybe a visit to the LBS is in order.

My bike dealer is riding a Stumpjumper FSR, too. He has the same problems, although he is an
excellent mechanic. I just thought that maybe someone

else

Quoted message said:

has found a solution to this annoying problem.

Michael

You may find that one of the cable outers that runs to the rear derailleur is a little too short,
and that the action of the suspension may be pulling the cable as you go over bumps. This would fit
with the symptoms you are describing, if I am understanding you right.

Andy Chequer

Andy Chequer <andy@(youdontwantthisbitinit)thisisasparagus.com> wrote in message
"]news:[email hidden]...

Quoted message said:

"Michael Steger" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

I'm sorry, confusion may be a result of my deficits in English language. I'll try to put things
right.

"bomba" <[email hidden]> schrieb im Newsbeitrag "]news:[email hidden]...

Quoted message said:

Michael Steger wrote:
> Hi
>
> I've got a 2002 Specialized Stumpjumper FSR. When I ride on plain trails with a lot of roots
> to cross I

constantly

Quoted message said:

Quoted message said:

get a

Quoted message said:

> chainsuck at the rear cassette (no problems at the front

chainrings).

Quoted message said:

Quoted message said:

The

Quoted message said:

> chain slips down several rear chainrings. This occurs while pedaling

and

Quoted message said:

is

Quoted message said:

> even worse without pedaling.

I'm slightly confused. Chainsuck occurs on the front rings, and an equivalent on the rear
would mean the cogs on the cassette holding the chain, wrapping it round and jamming the rear
transmission.

Chainsuck may be the wrong word here. The chain does not wrap around the cassette, it is
slipping down some cogs.

Quoted message said:

Normal slippage during pedalling would normally mean your rear derailleur needs adjusting, but
I'm at a loss to explain why the chain would jump several cogs without pedalling.

The derailleur is adjusted correctly, switching up and down is very

smooth.

Quoted message said:

The problem occurs when I ride over a series of hard roots on the trail.

Quoted message said:

>
> The problem is not related to worn down chain/cassette, I

encountered

Quoted message said:

it

Quoted message said:

Quoted message said:

> right out of the box.

When you say 'right out of the box', does that imply that it wasn't

set

Quoted message said:

Quoted message said:

Quoted message said:

up by a proper mechanic?

The bike was set up correctly by my dealer, I just intended to say that

I

Quoted message said:

Quoted message said:

have the problem from the very beginning on.

Quoted message said:

I would suggest that maybe a visit to the LBS is in order.

My bike dealer is riding a Stumpjumper FSR, too. He has the same

problems,

Quoted message said:

Quoted message said:

although he is an excellent mechanic. I just thought that maybe someone

else

Quoted message said:

has found a solution to this annoying problem.

Michael

You may find that one of the cable outers that runs to the rear derailleur is a little too short,
and that the action of the suspension may be

pulling

Quoted message said:

the cable as you go over bumps. This would fit with the symptoms you are describing, if I am
understanding you right.

Andy Chequer

'Word' Brother Chequer, 'word' - that's what I was gonna say too - nearly all of the similar
problems I've come across here, have been solved by lengthening one of the rear mech housings, or
moving it's position.

Shaun aRe

Shaun Rimmer said:

Andy Chequer <andy@(youdontwantthisbitinit)thisisasparagus.com> wrote in message
"]news:[email hidden]...

Quoted message said:

"Michael Steger" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

I'm sorry, confusion may be a result of my deficits in English language. I'll try to put
things right.

"bomba" <[email hidden]> schrieb im Newsbeitrag "]news:[email hidden]...

>Michael Steger wrote:
>
>>Hi
>>
>>I've got a 2002 Specialized Stumpjumper FSR. When I ride on plain trails with a lot of roots to
>>cross I
>

constantly

Quoted message said:

Quoted message said:

get a

>>chainsuck at the rear cassette (no problems at the front
>

chainrings).

Quoted message said:

Quoted message said:

The

>>chain slips down several rear chainrings. This occurs while pedaling
>

and

Quoted message said:

is

>>even worse without pedaling.
>
>I'm slightly confused. Chainsuck occurs on the front rings, and an equivalent on the rear would
>mean the cogs on the cassette holding the chain, wrapping it round and jamming the rear
>transmission.

Chainsuck may be the wrong word here. The chain does not wrap around the cassette, it is slipping
down some cogs.

>Normal slippage during pedalling would normally mean your rear derailleur needs adjusting, but
>I'm at a loss to explain why the chain would jump several cogs without pedalling.

The derailleur is adjusted correctly, switching up and down is very

smooth.

Quoted message said:

The problem occurs when I ride over a series of hard roots on the trail.

>>The problem is not related to worn down chain/cassette, I
>

encountered

Quoted message said:

it

Quoted message said:

>>right out of the box.
>
>When you say 'right out of the box', does that imply that it wasn't

set

Quoted message said:

Quoted message said:

> up by a proper mechanic?

The bike was set up correctly by my dealer, I just intended to say that

I

Quoted message said:

Quoted message said:

have the problem from the very beginning on.

>I would suggest that maybe a visit to the LBS is in order.

My bike dealer is riding a Stumpjumper FSR, too. He has the same

problems,

Quoted message said:

Quoted message said:

although he is an excellent mechanic. I just thought that maybe someone

else

Quoted message said:

has found a solution to this annoying problem.

Michael

You may find that one of the cable outers that runs to the rear derailleur is a little too short,
and that the action of the suspension may be

pulling

Quoted message said:

the cable as you go over bumps. This would fit with the symptoms you are describing, if I am
understanding you right.

Andy Chequer

'Word' Brother Chequer, 'word' - that's what I was gonna say too - nearly all of the similar
problems I've come across here, have been solved by lengthening one of the rear mech housings, or
moving it's position.

Shaun aRe

And if all else fails, run a continuous housing from the top tube stop to the rear derailleur, or
even all the way from the shifter. Just zip-tie the sucker on there, and make sure it doesn't curve
too tightly anywhere.

Jon Bond

Michael Steger said:

Hi

I've got a 2002 Specialized Stumpjumper FSR.

Quoted message said:

Maybe somebody has a solution,

Thank You

Michael

Michael, Michael, Michael....

Peace, Bill

The mind serves properly as a window glass rather than as a reflector, that is, the mind should give
an immediate view instead of an interpretation of the world.
:-]

"Jonathan Bond" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Shaun Rimmer said:

Andy Chequer <andy@(youdontwantthisbitinit)thisisasparagus.com> wrote in message
"]news:[email hidden]...

Quoted message said:

"Michael Steger" <[email hidden]> wrote in message
"]news:[email hidden]...

>I'm sorry, confusion may be a result of my deficits in English

language.

Quoted message said:

Quoted message said:

Quoted message said:

>I'll try to put things right.
>
>"bomba" <[email hidden]> schrieb im Newsbeitrag "]news:[email hidden]...
>
>>Michael Steger wrote:
>>
>>>Hi
>>>
>>>I've got a 2002 Specialized Stumpjumper FSR. When I ride on plain trails with a lot of roots
>>>to cross I
>>

constantly

Quoted message said:

>get a
>
>>>chainsuck at the rear cassette (no problems at the front
>>

chainrings).

Quoted message said:

>The
>
>>>chain slips down several rear chainrings. This occurs while pedaling
>>
and

>is
>
>>>even worse without pedaling.
>>
>>I'm slightly confused. Chainsuck occurs on the front rings, and an equivalent on the rear
>>would mean the cogs on the cassette holding the chain, wrapping it round and jamming the rear
>>transmission.
>
>Chainsuck may be the wrong word here. The chain does not wrap around

the

Quoted message said:

Quoted message said:

Quoted message said:

>cassette, it is slipping down some cogs.
>
>
>>Normal slippage during pedalling would normally mean your rear derailleur needs adjusting, but
>>I'm at a loss to explain why the chain would jump several cogs without pedalling.
>
>The derailleur is adjusted correctly, switching up and down is very

smooth.

>The problem occurs when I ride over a series of hard roots on the

trail.

Quoted message said:

Quoted message said:

Quoted message said:

>
>
>>>The problem is not related to worn down chain/cassette, I
>>

encountered

Quoted message said:

it

>>>right out of the box.
>>
>>When you say 'right out of the box', does that imply that it wasn't
>

set

Quoted message said:

>> up by a proper mechanic?
>
>The bike was set up correctly by my dealer, I just intended to say that

I

Quoted message said:

>have the problem from the very beginning on.
>
>
>>I would suggest that maybe a visit to the LBS is in order.
>
>My bike dealer is riding a Stumpjumper FSR, too. He has the same

problems,

Quoted message said:

>although he is an excellent mechanic. I just thought that maybe someone

else

>has found a solution to this annoying problem.
>
>Michael

You may find that one of the cable outers that runs to the rear

derailleur

Quoted message said:

Quoted message said:

Quoted message said:

is a little too short, and that the action of the suspension may be

pulling

Quoted message said:

the cable as you go over bumps. This would fit with the symptoms you are describing, if I am
understanding you right.

Andy Chequer

'Word' Brother Chequer, 'word' - that's what I was gonna say too -

nearly

Quoted message said:

Quoted message said:

all of the similar problems I've come across here, have been solved by lengthening one of the
rear mech housings, or moving it's position.

Shaun aRe

And if all else fails, run a continuous housing from the top tube stop to the rear derailleur, or
even all the way from the shifter. Just zip-tie the sucker on there, and make sure it doesn't
curve too tightly anywhere.

Jon Bond

This is in fact what I did to a particularly evil GT LTS a few years back. That stopped its farting
in church. Until the seatstays snapped, that is.

Andy Chequer

Jonathan Bond said:

And if all else fails, run a continuous housing from the top tube stop to the rear derailleur, or
even all the way from the shifter. Just zip-tie the sucker on there, and make sure it doesn't curve
too tightly anywhere.

If that doesn't work, ride a hard tail.

Mark Hickey Habanero Cycles habcycles.comhabcycles.comOpen ↗ Home of the $695 ti frame

Andy Chequer <andy@(youdontwantthisbitinit)thisisasparagus.com> wrote in message
"]news:[email hidden]...

Quoted message said:

"Jonathan Bond" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Shaun Rimmer said:

Andy Chequer <andy@(youdontwantthisbitinit)thisisasparagus.com> wrote

in

Quoted message said:

Quoted message said:

Quoted message said:

message "]news:[email hidden]...

>"Michael Steger" <[email hidden]> wrote in message
>"]news:[email hidden]...
>
>>I'm sorry, confusion may be a result of my deficits in English

language.

Quoted message said:

Quoted message said:

>>I'll try to put things right.
>>
>>"bomba" <[email hidden]> schrieb im Newsbeitrag "]news:[email hidden]...
>>
>>>Michael Steger wrote:
>>>
>>>>Hi
>>>>
>>>>I've got a 2002 Specialized Stumpjumper FSR. When I ride on plain trails with a lot of
>>>>roots to cross I
>>>
constantly

>>get a
>>
>>>>chainsuck at the rear cassette (no problems at the front
>>>
chainrings).

>>The
>>
>>>>chain slips down several rear chainrings. This occurs while

pedaling

Quoted message said:

Quoted message said:

Quoted message said:

>>>
>and
>
>>is
>>
>>>>even worse without pedaling.
>>>
>>>I'm slightly confused. Chainsuck occurs on the front rings, and an equivalent on the rear
>>>would mean the cogs on the cassette holding

the

Quoted message said:

Quoted message said:

Quoted message said:

>>>chain, wrapping it round and jamming the rear transmission.
>>
>>Chainsuck may be the wrong word here. The chain does not wrap around

the

Quoted message said:

Quoted message said:

>>cassette, it is slipping down some cogs.
>>
>>
>>>Normal slippage during pedalling would normally mean your rear derailleur needs adjusting,
>>>but I'm at a loss to explain why the

chain

Quoted message said:

Quoted message said:

Quoted message said:

>>>would jump several cogs without pedalling.
>>
>>The derailleur is adjusted correctly, switching up and down is very
>
>smooth.
>
>>The problem occurs when I ride over a series of hard roots on the

trail.

Quoted message said:

Quoted message said:

>>
>>
>>>>The problem is not related to worn down chain/cassette, I
>>>
encountered

>it
>
>>>>right out of the box.
>>>
>>>When you say 'right out of the box', does that imply that it wasn't
>>
set

>>> up by a proper mechanic?
>>
>>The bike was set up correctly by my dealer, I just intended to say

that

Quoted message said:

Quoted message said:

Quoted message said:

>
I

>>have the problem from the very beginning on.
>>
>>
>>>I would suggest that maybe a visit to the LBS is in order.
>>
>>My bike dealer is riding a Stumpjumper FSR, too. He has the same
>
problems,

>>although he is an excellent mechanic. I just thought that maybe

someone

Quoted message said:

Quoted message said:

Quoted message said:

>
>else
>
>>has found a solution to this annoying problem.
>>
>>Michael
>
>You may find that one of the cable outers that runs to the rear

derailleur

Quoted message said:

Quoted message said:

>is a little too short, and that the action of the suspension may be

pulling

>the cable as you go over bumps. This would fit with the symptoms you

are

Quoted message said:

Quoted message said:

Quoted message said:

>describing, if I am understanding you right.
>
>Andy Chequer

'Word' Brother Chequer, 'word' - that's what I was gonna say too -

nearly

Quoted message said:

Quoted message said:

all of the similar problems I've come across here, have been solved by lengthening one of the
rear mech housings, or moving it's position.

Shaun aRe

And if all else fails, run a continuous housing from the top tube stop to the rear derailleur,
or even all the way from the shifter. Just zip-tie the sucker on there, and make sure it doesn't
curve too tightly anywhere.

Jon Bond

This is in fact what I did to a particularly evil GT LTS a few years back. That stopped its
farting in church. Until the seatstays snapped, that is.

And also what I did to the BASE just before the a.m-b UK meet, but that's because my cables were
[censored], the weather in 'UK' is [censored], and the [censored] weather was making [censored] get into my [censored] cables
making them shift [censored], which was rather [censored], really.....

Shaun aRe - no [censored].