Fixed gear clicking noise by cog
11-08-14, 05:58 PM
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Fixed gear clicking noise by cog
I restored/converted an old peugeot into fixed gear this summer. Everything was running smoothly until I took my wheels off to show my gf what they would look like on her bike.
I tried to but the rear wheel back on my bike and now there is a clicking sound every time it rotates. Any idea how I can fix this? I'm afraid to ride it because I don't want to further mess things up.
I tried to but the rear wheel back on my bike and now there is a clicking sound every time it rotates. Any idea how I can fix this? I'm afraid to ride it because I don't want to further mess things up.
11-08-14, 06:19 PM
#2
~>~
If you are "afraid to ride it" FG in particular and cycling in general may not be your thing.
You will also be booted by the girl friend when she finds out......time to take up knitting instead.
-Bandera
11-08-14, 06:52 PM
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isolating noises is usually a job that involves removing possibilities one or more at at time until the source becomes clear.
i'd start by turning the bike upside down, removing the chain from the rear wheel, and then slowly spinning the rear wheel. then add more variables until the noise presents itself.
i'd start by turning the bike upside down, removing the chain from the rear wheel, and then slowly spinning the rear wheel. then add more variables until the noise presents itself.
11-08-14, 07:05 PM
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11-08-14, 08:25 PM
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Rather than panic you need to approach the problem logically, and you also need one critical piece of info. If it worked OK before and does not after you removed and reinstalled the wheel, then your installation is almost certainly the cause of the problem. First check to make sure the wheel is centered between chain stays and seat stays. If that is OK you need to know this:
The correct chain tension is no tension at the tightest point. In other words as you rotate your cranks you will find one spot where the chain is tightest. At that point you should easily be able to deflect the chain upward vertically with your finger. If it's too tight it will typically "crackle" when it's forced to go around the cog. Because the chainwheel is usually what is out of round the problem tends to happen once per crank rev. If the chain is too tight loosen the drive side axle nut enough so that you can move the axle very slightly forward. Tighten and then adjust the wheel back to center using the other axle nut.
The correct chain tension is no tension at the tightest point. In other words as you rotate your cranks you will find one spot where the chain is tightest. At that point you should easily be able to deflect the chain upward vertically with your finger. If it's too tight it will typically "crackle" when it's forced to go around the cog. Because the chainwheel is usually what is out of round the problem tends to happen once per crank rev. If the chain is too tight loosen the drive side axle nut enough so that you can move the axle very slightly forward. Tighten and then adjust the wheel back to center using the other axle nut.
