A set of coilovers.

Coilover used in the double wishbone suspension on a Lotus 7.

A coilover is an automobile suspension device, short for "coil (spring) over strut". It consists of a shock absorber (British: damper) with a coil spring encircling it. The shock absorber and spring are preassembled as a unit prior to installation, and are replaced as a unit when the shock absorber has leaked. This provides for optimal damping without torsional loads. Some coilovers are adjustable for ride height and hardness as well using a simple threaded spring perch similar to a nut. Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... Image File history File linksMetadata Size of this preview: 398 × 599 pixelsFull resolution (2000 × 3008 pixel, file size: 1. ... Image File history File linksMetadata Size of this preview: 398 × 599 pixelsFull resolution (2000 × 3008 pixel, file size: 1. ... A double wishbone suspension is an automobile independent suspension design using two parallel wishbone-shaped arms to locate the wheel. ... The Lotus Seven is a small, simple, lightweight two-seater open-top sports car, which have been called a motorcycle on four wheels. It is characterised by very good acceleration but a low top speed, handling is lively and the ride is uncompromising. The drag coefficient is around 0. ... Karl Benzs Velo model (1894) - entered into the first automobile race An automobile or motor car (usually shortened to just car) is a wheeled passenger vehicle that carries its own motor. ... The front suspension components of a Ford Model T. Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels. ... Gasfilled Shock absorber. ... A compression coil spring A tension coil spring A selection of conical coil springs A Coil spring, also known as a helical spring, is a mechanical device, which is typically used to store energy and subsequently release it, to absorb shock, or to maintain a force between contacting surfaces. ... Ride Height (or simply clearance) is the amount of space between the base of an automobile tyre and the underside of the chassis. ... A nut is a type of hardware fastener with a threaded hole. ...

The coilover is a basic component of the MacPherson strut suspension system, which is distinguished from other arrangements by employing a particular design of anti-roll bar as a longitudinal constraint. This was the first widespread use of the coilover in automobile suspensions. But there are other designs; the word coilover should not be considered a synonym for the MacPherson strut arrangement. A simple MacPherson strut suspension on the left front wheel of a rear-wheel drive vehicle. ... A sway bar (also called an anti-sway bar or anti-roll bar) is an automobile suspension device. ...

Coilovers should not be confused with struts or independently mounted shock absorbers.