I fitted my new front wheel bearings, definite improvement, the vagueness has gone away. Interestingly the Harley bearings had metal seals, they were definitely stiff when I removed them and the left one more so than the right, it gave a good old click just once then seemed smooth so I suspect one of the balls is cracked but without a load you cannot tell. The Koyo’s were noticeably smoother and faster rolling, the old ones came out and new ones went in very easily, thirty minute job all in. I even cleaned the wheel to keep ugly Bob happy.