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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 08-26-12, 02:48 PM   #1
bike-izle
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My Windsor Hour's chain line is off by at least 3 mm and...

it's making a funky noise. The chain's off to one side of the cog, and I can tell that the teeth are striking it by the "ratcheting" sound. The crank has a 46-47 chain line whereas the cog's is ~43.

I did a search and am currently researching what to do, but I was wondering if anybody else got this on their Hour and what they did about it. My bike is stock except for a 17 tooth Soma cog, but the noise was there even w/ the stock cog. Maybe I shouldn't expect too much from a cheap bike? But still, 3 mm seems pretty big, and aren't track cranks not supposed to be that far out?


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Old 08-26-12, 02:59 PM   #2
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Try mounting the chainring on the inside of the spider. If that doesn't get it in line, you probably need a new bottom bracket.
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Old 08-26-12, 03:07 PM   #3
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Originally Posted by bike-izle View Post
But still, 3 mm seems pretty big
On what planet?

3mm will not cause a noisy drivetrain. Your chain is most likely too tight.
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Old 08-26-12, 03:59 PM   #4
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3mm will not cause a noisy drivetrain. Your chain is most likely too tight.
times bizillion
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Old 08-26-12, 07:47 PM   #5
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On what planet?

3mm will not cause a noisy drivetrain. Your chain is most likely too tight.
Wait for the guy to answer!
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Old 08-26-12, 10:38 PM   #6
bike-izle
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Oh, OK. That's good to know. I'm new to this stuff...sorry for the lameness. I heard somebody say >2mm is too much for a 1/8 chain, and I can visibly tell that it's off, so....


My chain was on the tighter side. I've been fiddling w/ it and it's just tight enough to where the back-and-forth "slop" mostly disappears when I track stand. I also notice that my chainring isn't totally centered; I'll do the Sheldon thing w/ it tomorrow.

Noise is better, but there's still a bit of rattle. Maybe this will diminish as the new parts wear in?
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Old 08-26-12, 10:48 PM   #7
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My Windsor Hour's chain line is off by at least 3 mm and...

1/8 chains are less tolerant of bad chain lines but 2 or 3mm really is hardly anything. The kind of bike you have is also a factor. Frames with more rear-center are more tolerant of imperfect chain line.
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Old 08-26-12, 10:52 PM   #8
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In my experience, a little bit of that "slop" in the chain is ideal.
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