Bike shakes during wheelies

[Hornet]

All this talk of wheelying an R6 has got me thinking; anyone else have their bike start to shake after some long-ish wheelies? I'm not talking slow, stunt-type wheelies on a secluded road for video cameras, I mean long fast wheelies.
Er, on a closed road on the Nullarbor.
Have you found that dropping tyre pressure helps or changing the type of tyre you use?
Not for me, of course. It's for a friend.

[lee]

I had that in the emergency lane the other day.. talk about bad timing!

[Hornet]

Yeh, nothing worse than landing one on the Freeway and it shakes all over the place.

[Davey]

how do you mean? headshakes on landing ?

[Mirkz]

mine does it at times (as you saw first hand the other night Le Hornet)

though as soon as she's down she settles down again.
Doesn't always do it though


Davey think he means whilst its up in the air

[Davey]

like side to side movement of the rear wheel?

[resist]

oh goodness me.

dont feed the wolf children.

[Hellboy]

Maybe a flat spot in ya tyre after all of your skids?

[Arwon]

Flat spotted commuter type wear on tyres will cause it also a low tyre pressure. I have had cross winds cause some real grief in the past.

At high speed if you are near balance point rather than power mode it will cause the bike to float a little.

[Taylor]

Your bike is just scared. Comfort her.

[Hornet]

Maybe a flat spot in ya tyre after all of your skids?

What skids?

Yeh, Davey, rear wheel can be moving half a foot off middle. Looking at all the stunt vids from teh US it looks like they lower the pressures in the tyres to give a larger contact patch or something. I'd try this but I also like to maintain cornering stability and not sacrifice maneuverability.
Just wondering if maybe a few PSI would make a difference.

[Davey]

yeh if you're primarilly streeting which you are then dont change ur pressure. I'm gonna be going with 25psi front and rear from now on on my street/stunt bike as I kinda go 50/50.. the only real street riding i do is to stunt seshs heh..

[Hornet]

So lowering tyre pressures should sort it?
But will stuff the handling, obviously.

[lee]

Sir horny.. what street pressure do you run anyways?

[Hornet]

Ummm, 34f 36r me thinks.