Suspension frame consisting of two radius arms joined in the shape of an A, for providing lateral location.

A lateral suspension link resembling the letter A.

a type of suspension which includes an upper and lower control arm, connected to a spindle with balljoints or uniballs. Either a coil spring or torsion bar is used for load bearing. This suspension is among the most common on production vehicles today, due to its road handling characteristics. Unlike beam or straight axle suspension, a-arms have very little camber change throughout its cycle. Here is a picture explaining the basic components of a-arm suspension.

A triangle-shaped suspension control-arm device, with two points connected to the chassis and one to the wheel spindle. Control arms are sometimes called A-arms because from the top view, they are shaped like the letter A. Also referred to as A-frame.

This generally refers to the upper and lower suspension arm of a vehicle; the arm's 2-point chassis hinge and single point mount at the hub resembles the letter “A”.