Oh No! Not another mysterious sound diagnoses! Upon reflection, it is incredible how much time mechanics spend diagnosing sounds, and how good one can get at it.
So I come to this community a bit sheepishly, knowing how hard it is to do this sort of thing.
I'm now experiencing a rubbing, soft grinding sound on my V. It is a rotational sound, only happening when the bike is moving, and it does seem to correlate with the speed of the bike.
1. First thought was brake rubbing, but I've carefully used both brakes and neither front or back seems to have any impact on the sound.
2. The brake calipers are not scored in any way.
3. There is nothing clearly wedged anywhere, no sticks, nothing.
4. The sound is the sound of something like a wire brush rubbing a brake disc. A Whoosh, whoosh, whoosh.
My only theories now are that it has something to do with a bearing front or back, or something with a disc caliper that is somehow not affected by using the brakes.
Any known V issues here? Any ideas? Any hints at diagnosis? I'm going to put her on the stand tonight and see if running her in gear tells me anything (all precautions taken).