strange noise coming from rear
I have noticed (mainly) in stop and go, as i coast down from a low speed a strange noise coming from the rear. It almost sounds like a hand saw cutting wood slowly. It speeds up as my speed increase and slows as my speed decreases. The reason I say its at low speeds because the noise gets drowned out by my aftermarket exhaust and I can't hear it as distinctively going fast as I can slow.
I don't see any abnormal wear on the tires (as in rubbing on something) so I think it has to be something with the either the left or right side bearing? The weird part it is that it doesn't always happen, I tried taking a technician here at my work out for a spin and it made no noise.
What do you think?
2003 Buell XB9S