Handling issue - a question for you suspension gurus

[Paulh]

Tyre pressures will affect grip and feel, but shouldn't make the bike stand up mid corner.

[Samray]

One bike I bought with crap contis on that behaved just like that.

[BikerGran]

Over-tightened headstock bearings can cause this - I know cos mine came back from an MOT like that once and caused a couple of brown-trouser moments before I got it sorted!

[Kwackerz]

I think it's caused by the lettering on the Tank.

Change that, problem sorted.

Failing that I'd suspect any of the above suggestions

Out of alignment wheel, tight bearings or bent swingarm get my vote

[Syltiz]

I have temporarily solved the problem... by ignoring it while I strip it down to find out why it just recently dropped a cylinder. I knew I did that part-time motorcycle mechanics course for a good reason

[Fausto]

My money (what there is of it) is on notched head bearings.
The steering will always be trying to centre itself.

Simple test if you have a centre stand.

[Thumper]

A mate of mine asked me to test ride his bike to try diagnose a handling problem. He would not tell me what the bike was doing to see if it was real or just in his mind. It was fairly obvious though in that the bike would not stay leant over, it would take constant countersteering effort to keep the bike tracking the same line through the corner.

I tried a vareity of bends at different speeds and it seems to always be present. Releasing counter-steering pressure on the bar results in the bike sitting up and me re-applying countersteering effort in order to not run wide. This means the bike 'weaves' through a bend and on one high speed corner on the A3 it was actually pretty hairy. The only thing that seems to help is applying some throttle which to me is counter-intuitive as applying throttle should make the bike sit up? etc.....

Assuming there isn't a mechanical problem I would start with setting up the static sag and rider sag it sounds to me as if the bike is squatting down at the back is the spring to week for the rider or is it knacked dropping the fork through the frame may improve things if it does then you're on the right track to solving the problem.