Suspension Overview: Struts, Springs, Arms and the Geometry of a Modern Car

Suspension is the system between the wheels and the body that controls ride height, isolates impacts, and maintains wheel position through the full range of motion. Modern cars use MacPherson struts at the front, with a variety of multi-link, twist-beam or trailing-arm designs at the rear. Each layout combines springs (vertical support), dampers (shock absorbers — control of motion), arms (location), bushes (compliance), and the small hardware (drop links, top mounts, mount bushings) that ties it all together.

What this category covers

Shock absorbers, coil springs, suspension arms and joints, suspension bushes, anti-roll bar links and bushes, shock dust covers, engine mounts (yes — they’re in this category since they affect drivetrain motion against the body), air suspension components, and the rear axle hardware.

The UK wear pattern

Drop links typically fail first (small, exposed, take constant load). Track rod ends and ball joints follow. Lower arm bushes wear gradually over years. Top mounts and bearings wear slowly but eventually need replacement. Shock absorbers gradually lose damping — most UK owners never replace them. Coil springs snap when corrosion has weakened them enough.

Browse the full suspension range for your car on the Suspension collection.