Patent ID: 8246057

Claim:
A vehicle comprising: a frame; an engine supported on the frame; at least one propulsion device operatively connected to the engine to propel the vehicle; a straddle-type seat disposed on the frame, the straddle-type seat having at least one seating portion; a steering device disposed generally forwardly of the seat; and left and right side supports disposed generally laterally of the at least one seating portion on opposite sides of a longitudinal centerline of the vehicle, the left and right side supports having respective left and right support surfaces facing generally laterally inwardly, the left and right support surfaces moving generally in a direction of a current lateral acceleration of the vehicle from a first position to a second position when the current lateral acceleration of the vehicle is greater than a first predetermined lateral acceleration, and the left and right support surfaces moving from the second position toward the first position when the current lateral acceleration of the vehicle is less than a second predetermined lateral acceleration.