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Question about bike chain..

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Old 12-20-08 | 02:10 AM
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Bikes: Trek 3700 - Hardtail

Question about bike chain..

How can I tell if my bike takes a 1/8 or 3/32 chain? The chainring is a Rocket 42t and the freewheel (this is my single speed project, not my fixed gear) appears to be a no name brand. Both do not say what size chain is needed.

Last edited by bkowa092; 12-20-08 at 02:13 AM.
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Old 12-20-08 | 02:49 AM
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measure the chains width
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Old 12-20-08 | 02:51 AM
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That's the problem. This is a project bike, so there is no chain on it yet.
Is it safe to assume that since the chainring is for a bmx, that the chain needed is 1/8?
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Old 12-20-08 | 03:21 AM
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Any shop should be able to measure your freewheel and chainring in a few seconds for you and would definitely do it for free, if you were to buy a chain from them.
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Old 12-20-08 | 03:26 AM
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you can always run 1/8" chain on 3/32" drivetrain

with that said 1/8" is loud even with a good chainline and I would do what I can to run 3/32"
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Old 12-20-08 | 12:29 PM
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Originally Posted by jonestr
1/8" is loud even with a good chainline
false.
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Old 12-20-08 | 01:31 PM
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Here we go again...
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