Have you ever heard the term caster in the automotive world? Here’s his review:

Caster

Caster is the angle from the axis of the tire when viewed from the side. We can found caster process on spooring and balancing process.

Caster consists of three parts, namely:
• Positive caster is when the top of the steering axis tilted toward the back
• Negative caster is when the top of the steering axis tilted towards the front
• Zero caster is when the top of the steering axis parallel to the vertical line (right adjustment)

Caster functions, namely:
• Assist the steering control
• Assist the front wheel to come back straight after a deflected position to

Caster due to the incorrect position, namely:
• Cars are interested in one side
• Stir the hard / heavy
• Steer drifted so hard to maintain stability
• Stir not return after turning