[fizzwheel]

On the SV I found the major cause of it was riding hard on a poor / bumpy road surface. The suspension just gets to the point where I cant cope with what the bike and I are trying to do so it gives up and shakes the bars. I've never had the SV tank slap violently though. Normally the bit of road it will do it on is a crest of a hill where the road surface is rubbish and bumpy. if I ride over it with throttle pinned as I bridge the crest the front lifts and oscilates over the bumps and it makes the bars shake every time.

I would have though that the R6 with better suspension didnt oughta do it so badly. My GSXR doesnt, but it has a steering damper. I wouldnt have thought that on the motorway it would do it all. Maybe she rode over something in the road, debris or something like that and it upset the suspension and made it shake / slap the bars ?

Maybe though as you say shes clipped a cats eye and shes changed lane with the throttle open hard and not much weight on the front it might make it do it, but I'm not sure. I'm guessing it might have picked the front up a little and perhaps the wheel wasnt facing the direction that the bike was travelling in when the wheel touched down again as that I think is whats causing it.

Its probably worth getting her to check her tyre pressures, and maybe get if she hasnt the suspension setup properly for her weight ?

Best thing I've found to do is to actually do nothing at all, dont brake, or open the throttle just relax your grip slightly on the bars, stay relaxed try not to sh*t your pants and normally the bike sorts itself out.

I'm not expert on this kind of thing mnd. So I might have got some of this stuff wrong.