Wish I had done both, out this afternoon a vibration started in the bars which I recognised, yes you have guessed the other one has gone.
Much worse than the last one by the time I got home (riding very slowly) you could hear it cracking / grinding.
Took it apart and like the other one well packed with grease, but the inner had a couple of mm of both axial and radial movement.
Does not bear thinking about what could have hapenned if the balls or cage cracked up and locked the bearing at speed, hence my very slow ride home via the back lanes.
So at 6500 miles I have had to replaced the head bearings and front wheel bearings.
Not expensive so dont mind doing it, but this should not be happening at 6500 miles.
Said before that the dealer is not interested and CBA to contact RE direct, chances are they wont be interested.
Wonder how long it will be before the rear ones go, or even worse the motor goes bang.