i was riding on an on ramp for an airport here in palm beach.. well i took a turn knee dragging on jean

and i was doing maybe about 80-90, and as im coming out of the turn, wam, i hit like a gap on the road which is about 1-2 inches, the whole steering went crazy as fuck (seen this before but never experienced it) all sorts of thoughts ran thru my mind, then finally a good one, i hugged the tank hard with my legs, and held the steering as hard as hell, then gas it a lil, and got control of it .. i thought i was gonna lose it for sure
any of you had this problem ? does the steering stabilizer thing help out in cases like this ? if so i think ima get one asap cuz that shit scared the living poop out of me