chzeckmate wrote on 01/03/16 at 08:20:07:Either way it's fine. If it gets better or worse still goes to demonstrate the issue in the video. As for the amount of weight, go up incrementally until you get a result. If you don't get a noticeable difference then you're back to fix the forks and possibly select a different set of tires. Process of elimination.
^This.
Some tyres just don't get along with each other, especially when they start wearing out and become squared off.ie: My Ducati hated the Pirelli Phantom rear, Bridgestone Spitfire front combo. A new Battleaxe on the back fixed it. I believe the old airhead BMW's suffered, too. Maybe check your tyre pressures, too. The only time my Cabbage ever shook it's head was when I had 15 psi in the back.
Could be the road, too. Some grooves or tar snakes making it tramline?