New chain woes: Advice needed

Are the front chainrings worn or is the chain 8 speed compatible.

John

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

Quoted message said:

Hi all,

I've just got a new back wheel with a new cassette (8 Speed) on it.

Got a new chain and cut it to the same length as the old one, should work.

However, it doesn't.. Skips gears and sounds incredibly rough.

Any ideas what I'm doing wrong.

TIA

Grimbly said:

Hi all,

I've just got a new back wheel with a new cassette (8 Speed) on it.

Got a new chain and cut it to the same length as the old one, should work.

However, it doesn't.. Skips gears and sounds incredibly rough.

Any ideas what I'm doing wrong.

TIA

The new cassette may not be in the same horizontal position as the old
one, you may need to adjust the rear derailleur to accommodate the change.

Terry D

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

Quoted message said:

I've just got a new back wheel with a new cassette (8 Speed) on it.
Got a new chain and cut it to the same length as the old one, should work.
However, it doesn't.. Skips gears and sounds incredibly rough.

Both the above posts are relevant. However, I've also known people to route
the chain *outside* the moulded guides on the jockey arm of the rear mech
(which are designed to prevent the chain from coming off the jockey wheels).
Sorry if this is patronising, but it may be worth checking that the chain is
running only on the jockey wheels of the mech! This problem causes exactly
the symptoms you've described.

---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.692 / Virus Database: 453 - Release Date: 28/05/2004

Simon D said:

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

Quoted message said:

I've just got a new back wheel with a new cassette (8 Speed) on it.
Got a new chain and cut it to the same length as the old one, should work.
However, it doesn't.. Skips gears and sounds incredibly rough.

Both the above posts are relevant. However, I've also known people to route
the chain *outside* the moulded guides on the jockey arm of the rear mech
(which are designed to prevent the chain from coming off the jockey wheels).

There is also a little arm mid-way between the 2 jockey-wheels on the
front of the derailleur. The chain should go under, not over it (so that
it is not touching). A 'friend' has been known to make this mistake.

Quoted message said:

Sorry if this is patronising, but it may be worth checking that the chain is
running only on the jockey wheels of the mech! This problem causes exactly
the symptoms you've described.

Also, when you join the chain, it's possible to lock the links together
too tightly. If you do this, the chain will skip and you have to loosen
the offending join until it moves easily.

Kit

Thanks for all your advice....

When I can afford the slight expense I'm going to take it down to the
bikeshop and ask them to show me how to do it if they have a spare 10 mins..

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

Quoted message said:

Simon D said:

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

Quoted message said:

I've just got a new back wheel with a new cassette (8 Speed) on it.
Got a new chain and cut it to the same length as the old one, should

work.

Quoted message said:

Quoted message said:

Quoted message said:

However, it doesn't.. Skips gears and sounds incredibly rough.

Both the above posts are relevant. However, I've also known people to

route

Quoted message said:

Quoted message said:

the chain *outside* the moulded guides on the jockey arm of the rear

mech

Quoted message said:

Quoted message said:

(which are designed to prevent the chain from coming off the jockey

wheels).

Quoted message said:

There is also a little arm mid-way between the 2 jockey-wheels on the
front of the derailleur. The chain should go under, not over it (so that
it is not touching). A 'friend' has been known to make this mistake.

Quoted message said:

Sorry if this is patronising, but it may be worth checking that the

chain is

Quoted message said:

Quoted message said:

running only on the jockey wheels of the mech! This problem causes

exactly

Quoted message said:

Quoted message said:

the symptoms you've described.

Also, when you join the chain, it's possible to lock the links together
too tightly. If you do this, the chain will skip and you have to loosen
the offending join until it moves easily.

Kit