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Center-Point Steering

From WikiPedalia

In tadpole tricycles and other vehicles with two front wheels, the steering axis for each front wheel should be slanted so that it intersects the road surface somewhere in the middle of the tire track for that wheel. This is what is meant by "center-point steering." The benefit of this is that braking forces or forces caused by hitting bumps in the road have little or no tendency to cause the wheel to steer to the side.