Well it's definitely not the bearings.

After thinking the problem was gone I found that the wobble that I was getting from 95-100km/h had gone but it was now happening at 105-110km/h although not as pronounced.

So today I re-checked that there was no bearing play and put my muddies on for a Monday Toolangi/Murrundindi trip.

Then I went for a burn down the freeway. At 110Km/h it was spot on and for a brief moment took it to 120Km/h and it was still tracking straight with no wobbles at all so I am convinced that it can only be the wheel balance.

I had originally got all new tubes fitted and have already gone back once for them to re-balance them so it looks like I will have to go yet again.