Rocket_Rider
Supercharged
It is hard to tell - but acceleration plus torque plus loose sandy stuff CAN get the rear end to be lively.
If you feel up to it: walk about and look for anything like and old nut or odd size stone. I lost a Guzzi once in a roundabout : there was a bit of rubber cush drive right in "the line".
I should point out... the sand was not there when I went down, that was put down by the fire brigade after my accident when police noted there was oil all over the road from a previous car accident