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Grinding Noise(2 posts)

Grinding Noisechbarr
Apr 2, 2003 8:33 PM
Hi!

Last Friday, I had to replace my bottom bracket. At the same time, the guy at my local shop suggested a new chain. My bike (2001 Trek 1000) had about 2000 miles on it, plus time on a trainer, so it didn't seem unreasonable.

However, when I pedal under load, it makes a grinding noise, like it is trying to shift. It is only during serious effort--starting from a stop, climbing, rapid acceleration.

I've oiled the chain, and tweaked the barrel adjust, and it does seem a touch better.

Any suggestions? Do I just need to "break in" the new chain? Or is there something I could do to fix this.

thanks,
Charles
re: Grinding NoiseAkirasho
Apr 3, 2003 9:00 PM
... since chains and cassettes generally wear together... it's possible that you need a new cassette as well.

It's certainly possible to get more than 2K out of both... but OTOH, your results may vary.

What happened to the bottom bracket?

Be the bike.