Fixed meaning non-removable, i.e. bolted in place. Swan-Necks (named due to their shape) were more of a European thing 20 year ago, but are now the norm in th UK (except on commercial vehicles).

Suitable for all tow ball mounted applications from cycle carriers to alko-stabilisers. Swan-necks are less likely to interfere with parking sensors than a fixed flange.

Note: Items that require a flange are incompatible with swan-necks (e.g. some older cycle carriers, bumper protectors and some caravan stabilisers). Adapters are available but are not always advisable for all applications.

The traditional UK tow bar type, non-removable. A slightly larger profile so more likely to be detected by parking sensors.

The flange plate enables the use of different types of tow ball such as pin & ball, bumper protector plates, or a flange plate-mounted cycle carrier which leaves the tow ball free (so you can tow and carry cycles simultaneously). Most fixed flanges are the 2-bolt kind, 4-bolt fixed flange towbars also exist but are more common on commercial vehicles & pickups.

Appearance similar to a fixed-swan but with a mechanism to detach and re-attach, so you can remove it when not required.

Modern types offer a lockable twist-action release system for removal, and offer relative degrees of ‘invisibility’ (dependent on vehicle and brand of towbar*) meaning the result leaves no visible sign of the towbar when the neck is removed (and the electrical socket swivelled up).

Note: Items that require a flange are incompatible with swan-necks (e.g. some older cycle carriers, bumper protectors and some caravan stabilisers). Adapters are available but are not always advisable for all applications.