[bitwidget]

I'm guessing they've probably implemented baffles within the tank, but even if there wasn't it shouldn't be too much of an issue. Once they are able to get going and are not stopping quickly for emergencies, they should be as stable, if not more stable, compared to a regular bike.

[wuunderbar]

Guessed wrong, they definitely found it to be an issue: "After a grueling 304-lap test, Acerbis found they needed to use sponges to combat the sloshing inside the tank at the expense of losing some volume. The final tank weighed 15.2 kg (33.5 lbs) and could hold 108 liters."