Bottom bracket noise.

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ian

Cruisin' on my Bluebird
View attachment 1661589

let’s put this one to bed đŸ˜‚
pop the chain off and measure it, while it’s off take a pic of the cog, from your earlier pic it sure looks like the teeth are done

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ian

Cruisin' on my Bluebird
This is the 15 tooth cog that came with the ride. The chain as well. I replaced the chainring with a ladies one from a Higgins.
 

ian

Cruisin' on my Bluebird
Another rim/cog that was placed on the ride with the same noisy outcome.
 

rustjunkie

. . . . . . .
Moderator
so....lets see pics of the other cog too???

how many links is the chain?
chains need to be measured hanging or pulled tight.

Did you read the sheldon brown chain wear link?


chains and cogs wear together, dollars to donuts the chain that was on that little cog with the warn out teeth is worn out too
 
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J-wagon

Wore out three sets of tires already!
If this were multispeed, I'd be more concerned worn cogs and chains affect shifting, as for me less issue on singlespoeds, can ride till cogs teeth are nubs, adjust tension as necessary
 
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