96DXCivic
96DXCivic Reader
9/21/09 1:24 p.m.

How does scrub radius and kingpin angle effect the rear suspension? I understand what the scrub radius and kingpin angle do in the front but what does it do to the rear?

carguy123
carguy123 Dork
9/21/09 1:51 p.m.

There's not scrub in the rear because the tire isn't pivoting around an axis?

96DXCivic
96DXCivic Reader
9/21/09 2:27 p.m.

That is kinda what I figured. But what about kingpin angle?

Strizzo
Strizzo SuperDork
9/21/09 2:58 p.m.

Doesn't kingpin angle refer to the angle of the axis of the pivot point of the steering? If so, it doesn't matter either since the rear doesn't steer.

96DXCivic
96DXCivic Reader
9/21/09 3:01 p.m.

Yup. I kinda thought as much but since none of my books said anything about it I wanted to ask and make sure

walterj
walterj Dork
9/21/09 3:29 p.m.
Strizzo wrote: Doesn't kingpin angle refer to the angle of the axis of the pivot point of the steering? If so, it doesn't matter either since the rear doesn't steer.

Well, the rear in some configurations can suffer from bump steer (semi-trailing arm for instance) and in that case, the angles and radius can make a huge difference as it moves in whether that is controllable or terrifying.

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