I tried it with my 911, but didnt change a thing... I had the same. my last bike was manual shocks so I had them up on max pre-load for 2 up touring. Took all the boxes off and the pillion and went out by myself for the day.. it was horrid. Turned the pre-load down to one rider and it almost went.. so pre-load does play a big part in transfering the feeling to the pegs.. it also may change the angle of the shaft a bit if only one up?
My rear tyre was about due for a change .. Pilot 3, but I can't see why that would cause it?
did you do the shaft.. was it okay?
I havent done the shaft yet, waiting on delivery of some parts. Then will do the FD oil change and the shaft re-grease. Maybe tomorrow if it arrives.
Yeh that sounds about right for mine also. Interesting point about the angle of the shaft, never thought about that!
I'm 110kg in gear so I tend to run one setting up on the config, ie. 'Rider + Luggage' for myself and 'Rider + Pillion' for me and luggage or two-up.