A vehicle includes a frame, an engine, a steering assembly, a steerable wheel, a brake system, a flywheel assembly, and a controller. The frame defines a roll axis. The engine is supported by the frame. The steering assembly is pivotally coupled with the frame and is pivotable about a steering axis. The steerable wheel is rotatably coupled with the steering assembly. The flywheel assembly comprises at least one inertial mass and is coupled with the frame. A controller is coupled with the flywheel assembly and is configured to facilitate rotation of said at least one inertial mass.