Definitions – Part 2

Caster – This is the angle of tilt of a line drawn from the center of the top ball joint through to the center of the bottom ball joint, compared to vertical. Caster aids the wheels to straighten themselves out after cornering, however the more caster you have, the more that you may have to fight the steering entering a corner. If the top tilts toward the rear of the vehicle, then it has positive (+) caster. If it tilts forward toward the front, then it has negative (-) caster.

Caster

Figure 4 – Positive Caster

 

Caster Split – This is the difference between the caster of the front wheels. If the left front is set at +1 degree and the right front is set at +3 degrees, then your caster split is 2 degrees (Right front(+3) –Left front (+1) = 2).

  Continue reading “Definitions – Part 2”

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Force – an influence on an object, capable of producing or tending to produce a change in movement.

Suspension Bump – Occurs when either physical track changes, such as bumps or body roll due to cornering causes the suspension to travel upward from the set ride height.

Suspension Droop (or Sag) –Occurs when either physical track changes, such as holes, grooves or body roll due to cornering causes the suspension to travel downward from the set ride height.

Suspension Travel – This is the total distance that the suspension moves from the full height of Suspension Bump to the full drop of Suspension Droop.

Continue reading “Definitions – Part 1”