Alignment Fundamentals, Part Two. Steering Axis Inclination (SAI). The inward tilt at the top of the strut. (looking from the front). SAI and Included angle. Include angle = SAI + pos. camber. SAI and Bump steer. Zero SAI would = Major bump steer. 0 Bump Steer.
Zero SAI would =
Major bump steer
Commonly used on front wheel drive vehicles