Contributing to the smoothness of the ride is an active vibration dampening carcass whereby a stiff base under the tread and an absorbing rubber gum strip soaks up the tyre vibrations, reducing impact of road irregularities. Based on internal subjective, and interior and exterior instrumented noise tests versus leading Goodyear tyres in its class under urban driving conditions, the Eagle EfficientGrip is Goodyear's quietest and most comfortable tyre ever.

Anti-roll bar ( stabilizer bar ). An anti-roll bar (anti-sway bar, sway bar, stabilizer bar) is a part of many automobile suspensions that helps reduce thebody roll of a vehicle during fast cornering or over road irregularities.

It connects opposite (left/right) wheels together through short lever arms linked by a torsion spring. Anti-roll bar is intended to force each side of the vehicle to lower, or rise, to similar heights, to reduce the sideways tilting (roll) of the vehicle on curves, sharp corners, or large bumps.

Suspension part for your vehicle, firstly you need to know the vehicle type and characteristic, As your vehicle rolls down the road, the springs absorb the bumps and road irregularities. Shocks and struts dampen spring movement so the wheels and tires don't move up and down too rapidly, and prevent the springs from continuing to oscillate after bumps.

Without shocks and struts your tires would bounce, so you would not only have a harsh ride, but little vehicle control, since tires in the air can't help your vehicle accelerate, brake or turn.