Patent ID: 7077215

Claim:
A three-wheeled vehicle comprising: a frame; a pair of rear wheels supporting said frame; a single front wheel supporting said frame; a steering system coupling a steering wheel to said single front wheel, said steering system operable to pivot said single front wheel in response to a steering input from said steering wheel; a grading device positionable in a raised position and a lowered position; and a steering limiting system operably coupled with said steering system, said steering limiting system operable in a normal reaction mode when said grading device is in said lowered position, said normal reaction mode defined as one of a first steering ratio having one of a first number of turns of said steering wheel from a first to a second direction limit and a substantially unrestricted steering rate of turn, and a slow reaction mode when said grading device is in said raised position, said slow reaction mode defined as one of a second steering ratio greater than the first steering ratio and a restricted steering rate having an increased steering effort with respect to the unrestricted steering rate.