What effect does too much positive caster have on vehicle handling?

When discussing the effects of caster angle on vehicle handling, it is important to focus on the role of positive caster. A greater positive caster angle typically enhances cornering stability. This is because a positive caster angle causes the steering axis to tilt backward, creating a self-centering force on the steering system. As a result, when the vehicle is cornering, the front tires tend to have more weight on them, which improves grip and helps the tires maintain better contact with the road. This self-centering effect provides drivers with a more stable and controlled feel when navigating bends and turns.

While improved cornering stability is the primary benefit of increased positive caster, it is also essential to understand that excessive positive caster can lead to challenges. Although the answer reflects the positive effects, having too much caster can potentially make the vehicle harder to steer at low speeds, thus impacting overall responsiveness. This nuance is why it’s critical to maintain a balance in alignment specifications.