Two-wheeled vehicle frame with controllable dynamics

A control system for a two-wheeled vehicle having a main frame and a steering frame, the control system comprising:

• an auxiliary angular momentum (A2M) system operative to produce angular momentum to be added to, or subtracted from, angular momentum of a steering wheel that is steerable with the steering frame;
• and
• an adjustable trail (AT) system operative to vary a trail of the steering wheel;
• wherein the A2M system includes an A2M actuator and an A2M controller, the A2M actuator comprising a mounting coupling, a motor, and a rotatable mass mechanically coupled to the motor, wherein the mounting coupling is constructed to maintain alignment of the rotatable mass and the steering wheel, the motor being operative to impart rotation to the rotatable mass under control of the A2M controller;
• and
• wherein the AT system includes an adjustable coupler of the steering wheel to the steering frame, an AT actuator, and an AT controller, wherein the AT actuator is operative to adjust a position of the adjustable coupler under control of the AT controller.