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 Post subject: IG CHAIN
PostPosted: Thu Nov 03, 2005 5:14 pm 
BoTM Winner
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Joined: Sun Oct 09, 2005 8:19 pm
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Location: S WALES
hi
i have an lx chainset which says IG chains only
which they all probarbly do
it is also smaller than my other chainset on the pine
am i right in saying this is microdrive
if so what chain other than shimano can i use , a few priorities=

1= 7 speed
2= silver ( purely cosmetic you understand )

can i use anything other than shimano =
if i use a sram chain can i use a sram cassette

i have used a non shimano chain on the pine but cant remember what it is

thanx slim


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 Post subject:
PostPosted: Thu Nov 03, 2005 5:43 pm 
Old School Grand Master

Joined: Wed Jun 29, 2005 11:18 am
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Location: near cwmcarn
unless you want to use a BMX chain. then most of the chain specific gearing blah blah is just marketing BS. you could use a connex/ sachs/sram chain on pretty much any 7/8/9 speed combo

after using a Taya chain I wouldnt recommend 1. I never got on with the specific pins for repairing shimano chains.


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 Post subject:
PostPosted: Thu Nov 03, 2005 5:45 pm 
Old School Grand Master
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7 and 8 speed chains are a different width to 9 speed. Mixing 7/8 and 9 is a bad idea.
I run Shimano on all my rides, bar one. Great chains. I've used SRAM/Sedis in the past and they are also fine.

Any 7 or 8 speed silver chain sounds like it will do the job for you. Like I said before I'd stick with shimano or sram though....


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 Post subject:
PostPosted: Thu Nov 03, 2005 5:49 pm 
Old School Grand Master

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jon, u CAN run a 9spd chain on 8spd with no probs.. I've been doin it for years ;D


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 Post subject:
PostPosted: Thu Nov 03, 2005 5:56 pm 
Old School Grand Master
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scant wrote:
jon, u CAN run a 9spd chain on 8spd with no probs.. I've been doin it for years ;D


You can, I'll not deny you that :D . The sprocket pitch is however different on 7/8 vs 9 vs 10

Shimano 8-speed 4.80
Shimano 9-speed 4.35
Shimano 10-speed 3.95


It's still best to run the correctly pitched chain for your drive train. I've had problems in the past with certain chainrings designed for 8 speed being a touch too thick for a 9 speed chain.


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 Post subject:
PostPosted: Thu Nov 03, 2005 7:16 pm 
Gold Trader / PoTM Winner / RB Rider
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I have the reverse problem , with a shimano chain ,

i have an 8 speed cassette and and 8 speed chain . On the smaller ring the chain keep jumping as it is touching the second ring . I thought it was mech but it works fine on all other gears.

So next chain will be a 9 speed , as they are finer .

Sedis are very good chain


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 Post subject:
PostPosted: Thu Nov 03, 2005 7:34 pm 
Old School Grand Master
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cchris2lou wrote:
I have the reverse problem , with a shimano chain ,

i have an 8 speed cassette and and 8 speed chain . On the smaller ring the chain keep jumping as it is touching the second ring . I thought it was mech but it works fine on all other gears.

So next chain will be a 9 speed , as they are finer .

Sedis are very good chain


I'd be looking at your chainline first.


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 Post subject:
PostPosted: Thu Nov 03, 2005 7:43 pm 
Old School Grand Master

Joined: Wed Jun 29, 2005 11:18 am
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Location: near cwmcarn
I had 1 of the first M950 chainsets (8spd) then a few years later a M952 supposedly 9spd. bored in the bike shop, got the electronic vernier calipers out.. yup u guessed it. no difference. As far as chains go, stick with sachs over shimano ;)

cchris2lou, yup deffo sounds more of a chainline problem


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 Post subject:
PostPosted: Thu Nov 03, 2005 9:03 pm 
Gold Trader / PoTM Winner / RB Rider
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Do you think it is too long ?


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 Post subject:
PostPosted: Thu Nov 03, 2005 9:24 pm 
Old School Grand Master
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cchris2lou wrote:
Do you think it is too long ?


Chainline refers to how the chain runs between the front and rear sprockets. Good guide on it here > http://www.sheldonbrown.com/chainline.html

Basically you want the middle chain ring to 'line up' with the middle of the block at the back.


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