I have a full suspension mountain bike with disk brakes. When I ride fast, my rear disk brake starts to make a noise similar to the one you would hear when sharpening a knife. It happens when I don't brake. If I brake, the noise disappears, I only hear the smooth braking sound.
I presume something is wrong with the rear tire - visual inspection when it rotates fast shows that it wobbles. I tried to demount it and mount it back again two times, but no success - still wobbles.
Can the non-aligned rear tire cause by disk brake to be noisy when I ride fast?
Shall I simply buy a new tire, or could the solution be elsewhere?
This is an update - with videos showing the wobbling tire.
although it seems to be redundant now, as Jackson and Rider_X already suggested other solutions. Thanks guys :-)