Thought of bearings.. i have centre stand fitted..so useful...ill check in day or soCould be a bad wheel bearing. Easy to check. Jack up the front tire and rotate the front wheel.
Aldo check for side-to-side play and check the steering bearings while the wheel is off the ground.
I raise the front wheel of my bikes with a bottle jack or pull straps from the rafter in the garage.
I do have the bike on it's center stand for this.