I recently got a clone r/c for a friend. It's got some insane 2.6 motor with enough torque that it sails across carpet like nothing. And it steers almost too sharply, litteraly on a dime. The only problem is that it jerks while your driving. It will drive straight for a bit, then jerk left or right.
Is there an easy solution to this? Would spring suspension fix the problem? Or do you need more weight in the front?

I'm not sure. Any help would be most welcome.