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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 09-17-09, 12:21 PM   #1
kilworth
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Orientation of Miche Cog Carrier

Hi!
To get my chainline straigt I have to move my rear cog a bit to the center, the only way to to this would be to change the orientation of the cog carrier..
My question is, if there is anything that speaks against doing this besides not being able to change my cog quickly..

For better understanding there is a picture of the situation.

If it is not possible, how would a 3mm (about 1/8 inch) off chainline affect the bike?

Thank you very much
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Old 09-17-09, 12:42 PM   #2
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you can also move the crank or chainring outboard.
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Old 09-17-09, 12:51 PM   #3
kilworth
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as it is a kind of old frame it has cottered cranks (http://sheldonbrown.com/cotters.html )
so sadly this is not an option..
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Old 09-17-09, 01:15 PM   #4
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Will you still be able to thread on the lockring with a spacer in there?
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Old 09-17-09, 01:37 PM   #5
kilworth
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dont have any spacers yet, but i'm pretty sure the lockring still fits, as the cog carrier would be closer to the center of the hub
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Old 09-19-09, 12:17 PM   #6
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nobody knows?
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Old 09-19-09, 12:54 PM   #7
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try it, the carrier is essentially a spacer so that the chain won't rub/get stuck between the hub.
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Old 09-19-09, 01:59 PM   #8
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Originally Posted by kilworth View Post
nobody knows?
Of course not. Try it and let us know how it works. As long as the cog is secure, and the carrier and lockring engage plenty of threads, it should work. If not, don't do it. A chainline thats 3mm off is well within tolerances.
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Old 09-19-09, 08:36 PM   #9
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Originally Posted by kilworth View Post
Hi!
To get my chainline straigt I have to move my rear cog a bit to the center, the only way to to this would be to change the orientation of the cog carrier..
My question is, if there is anything that speaks against doing this besides not being able to change my cog quickly..

For better understanding there is a picture of the situation.

If it is not possible, how would a 3mm (about 1/8 inch) off chainline affect the bike?

Thank you very much
Yeah, you're engaging less threads everywhere depending on how thick the spacer is.
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Old 09-20-09, 05:26 AM   #10
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You could also move your chainring to the right a few mm with a BB spacer. This is a much more reasonable solution. There are a lot more threads on a BB cup.
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