Bicycle Mechanics - New chain popping
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12-27-07, 10:34 AM
I have a Haro f-2 bike( 20") and replaced rear rim with a eastern 9' er cassette and replaced front chain wheel ( front sprocket) with a eastern medusa 1/8 25t. I have broken several cheap chains and have since replaced with a shadow interlock 2 which seems to be a heavy duty chain but the chain makes a popping noise when under pressure ( doing tricks).When just riding it seems to be fine.After inspecting the chain it is not rolling smooth over the rear 9t sprocket.Wondering if i need to get a different type of chain for this setup. Thanks.
are the rear cogs new too ?
new chain may do this on worn cogs. just get new cogs
12-27-07, 10:52 AM
Not for sure what you mean by rear cog but i have replaced with a new rear wheel and a 9t sprocket.
12-27-07, 11:14 AM
Is the rear cog (aka sprocket) intended for a 1/8" chain?
12-27-07, 11:27 AM
Thanks i will call Dan,s comp and find out what type i have replaced with rim and cog ?.There book does not say what type of chain it is for 1/8 or a 3/32. Is there another way to find out if it is for a 1/8 chain. This may be my problem.
Is the chain maybe too tight?
a 3/32 chain on a 1/8 sproket is very obvious. The chain will not seat down in the teeth very far at all. You will see a lot of light between the chain and cog. If this was the issue, you would have far more trouble getting the chain to engage than you currently are, I would guess.
In my experience on fixed gears, new chains and cogs sometimes take a little while to marry. And others have said that some combinations just do not fit well together. I have never found this to be so, since the few that have made noise did wear in well after a little bit.
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