danny_isr

I just replaced today the pedals, was hoping maybe it was related.
But it's not the noise is still there. It's a Santa Cruz Blur Classic that i bought recently.

here an example :



and this:


any idea what this can be ?

thanks

jimc101

When you say just bought, 2nd hand? Guessing so, as the BB looks to be an old XT HT1 model.

Thinking it will be either the BB, of bearings in the frame, probably not the BB, as the sound seems to come at different parts of the crank rotation.

You could give the bearing a basic check, by pulling the shafts at BB pivots (both of them) and rotating the bearing with your fingers, you will probably find one or more has a rough/sticky spot, if so, replace (would do them all if this is the case) and the creak will be gone.

danny_isr

yes second hand.

So i went to a down hill park ride this weekend, the noise is gone.
Day before, i stopped at a bike shop. They said it's not the BB, more like one of the pivots. So i guess i will just keep an eye on this

thanks for the reply

dminor 

If you dig inside that BB shell, you'll likely find something like this: