As wheel-controlling connecting links, top mounts transfer all dynamic loads. Perfectly coordinated, they increase steering precision and reduce disruptive vibrations that occur while braking or when driving on bumpy roads. MCU top mounts and spring seats ensure that driver and passenger comfort is protected as much as possible from the sudden shock input caused by driving over bumps, obstacles and pot holes. They perform a damping function and are essential to vehicle stability and road holding. Top mounts and spring seats made of MCU also help isolating tire noise. Thanks to their high volume compressibility, the housing can be reduced with effects on costs, weight, and space requirements.