towbar

A towbar is a device attached to the chassis of a vehicle to enable towing of another trailer or light vehicle. It generally consists of a rigid bar, a mounting system to secure it to the vehicle, a towing coupling such as a tow ball, and an electrical connector to power trailer lights and brakes. Towbars can be designed as fixed units or as detachable/swapped designs (for example swan-neck or flange-style towbars) to improve clearance and appearance when not in use. Some systems use different coupling methods, including ball-and-socket, pintle hooks, or other fittings, depending on the trailer and regional requirements.

Towbars are rated for specific towing capacities, which must be matched to both the towing vehicle’s stated capabilities and the trailer’s weight. Key figures include gross trailer weight and tongue or downward load. Incorrect sizing or mounting can cause vehicle instability, poor braking response, or damage. The ballast and load distribution are important, and many caravans and trailers rely on appropriate tongue weight to maintain balance during towing.

Electrical connections are an essential part of many towbars. They provide power and signaling for trailer lighting, and may include connectors for braking systems or auxiliary features. Connectors are available in several standards (for example common 7-pin or 13-pin configurations in some regions) and must be compatible with both vehicle and trailer.

Installation and maintenance should follow vehicle manufacturer guidance and local regulations. Proper mounting, torque settings, wiring, safety chains, and regular inspection for wear, corrosion, or mounting fatigue are important to ensure safe towing.