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can a cheap chainring cause a noisy drivetrain(4 posts)

can a cheap chainring cause a noisy drivetrainDERICK
Apr 18, 2001 10:11 PM
I recently purchased used bike with a full Dura Ace group. The bike is a 2000 model.Apon close inspection I found that the large chainring is a Blackspire (made in canada).I have never heard of this company.

Anyway, I have been noticing a lot of extra noise when using the big ring. The chain is not touching anything and I keep the bike very clean and well tuned. I just put a new DA chain and DA casette on it to get the gearing I wanted so everything else is new. The noise is not really bad, sounds like regular bicycle noise only louder.

Any advice or info on Blackspire would be appreciated
Thank you
re: can a cheap chainring cause a noisy drivetrainCamp Guy
Apr 19, 2001 5:17 AM
Don't know about that exact product, but the answer to your question is yes - if the patten part is not machined to the same spec/tollerances as the "real" one, then there will be an amount of mis-meshing as the chain passes round the ring, which will cause noise, and most likely, wear problems too (though they may be too small to make and real difference).
A shot in the dark, but....DINOSAUR
Apr 19, 2001 8:24 AM
My '99 Klein QR exhibits drive train noise when I am in certain gears. It drove me nuts for a while. Upon close inspection I noticed that I had slightly tweaked the large chain ring when I took a minor tumble when my bike was fairly new. It's hardly visible, just a slight wobble, but enough to knock it out of alignment. Just a thought...
re: can a cheap chainring cause a noisy drivetrainCIARAN.
Apr 20, 2001 6:41 PM
DERICK,
I recently purchased a new PINARELLO with full Dura-Ace 9 speed.But I also use SPECALTIES TA chainrings,which are cheaper than Dura-Ace.Also because then come in different number teeth,and my drivetrain sounds exactly the same.
Hope this is a help to you,
Ciaran.