Royston Kimblewick With Port & Bradoon

A low port gives space for the tongue.

Will not collapse on the bars.

Has no real palate pressure.

The lack of shank on a kimblewick gives far less leverage.

This design offers a variety of pressure points. The port of the Cambridge design pushes against the roof of the horses mouth if needed.

This design also allows the tongue to move.

The D-shaped rings can function as lever arms if the reins are placed at the bottom.

There is a hoop above the ring which accommodates a curb chain, applying pressure to the chin and amplifying movements in the mouth. 

Complete with Bradoon.