The TARS (Tractor Anti-Roll System) looks a fair bit like most fifth-wheel setups from the top, with its cast steel top plate and trailer locking mechanism. It can handle 55,000-lb (25,000-kg ...

Reducing that list is what roll-stabilization systems aim to do. During cornering, conventional anti-roll bars—steel rods that act as torsion springs connecting the left and right suspension ...

The contained nitrogen acts as a spring to resist that flow. As a result, there’s no need for anti-roll bars or stiff suspension coils to keep the body from listing excessively in a bend.