Brochure

Tire Wear Due to Improper
Camber Settings
Camber is the angle formed by the inward or
outward tilt of the wheel referenced to a ver tical
line. This angle is measured in degrees.
Camber is positive when the wheel is tilted
outward at the top and is negative when the
wheel is tilted inward at the top.
Tire wear from excessive camber: Wear
from positive camber is on the outside shoulder
of the tire; with negative camber, wear is on the
inside shoulder
.
Caster is the forward or rearward tilt of the
steering axis in reference to a vertical line. The
angle is measured in degrees. Caster is positive
when the top of the steering axis is tilted rear ward
and is negative when the tilt is for ward. Caster is
usually a factor in vehicle handling, but can affect
tire wear. Proper caster is important for directional
stability and returnability. Improper caster can
cause shimmy, excessive steering effort, pulling
and shoulder wear on the steer tires.
Turning Angle
Turning angle is the difference in the angles of
the front wheels in a turn. This measurement is an
aid in diagnosing steering problems and irregular
tire wear. Improper turning angle may cause
scuffing, leading to excessive tire wear.
18°
20°
Positive Negative
–+
Positive
Negative
–+
Caster: A Factor in
Vehicle Handling
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