Double jointed resin eggbutt bits

Eggbutt double-jointed synthetic bits: three features, three distinct functions

An eggbutt double-jointed synthetic bit combines a resin-coated articulated mouthpiece with fixed eggbutt rings. This design brings together three elements, each influencing a different aspect of the bit: the rings determine its mechanical action, the double-jointed mouthpiece affects how pressure is distributed within the mouth, and the synthetic coating primarily influences the feel of the contact.

Eggbutt rings: greater stability

Unlike loose rings, eggbutt rings have a specific mechanical function. They sit gently against the corners of the mouth and keep the bit centred without creating excessive lateral pressure. This design improves stability during work by reducing lateral movement of the bit, which changes the way the rider's rein aids are transmitted to the horse.

Whereas loose rings slide freely through the mouthpiece, eggbutt rings provide a more controlled transmission of the aids towards the intended areas. As a result, communication becomes more direct and more consistent.

Double-jointed mouthpiece and synthetic coating: two factors that influence the feel in the mouth

Independent rein aids for greater clarity

The mouthpiece combines two distinct characteristics: its articulated design and the material covering it. The double-jointed mouthpiece features two joints connected by a central lozenge. This construction allows the rider to use the right and left reins more independently, enabling each hand to act without the movement of one directly affecting the other. This geometry influences how the mouthpiece follows the shape of the horse's mouth and distributes pressure across the tongue, the bars and the corners of the mouth.

The synthetic coating primarily affects the nature of the contact. Lightweight, slightly textured and neutral in temperature, it encourages salivation and jaw mobility, both recognised indicators of a relaxed and receptive mouth. Its very low thermal conductivity provides a consistent feel in both warm and cold weather. On double-jointed synthetic eggbutt bits, the resin covers the mouthpiece but does not form it entirely, as the central lozenge is generally made from metal.

Why combining eggbutt rings, a double-jointed mouthpiece and synthetic coating creates a unique action

The strength of an eggbutt double-jointed synthetic bit lies in the combination of three elements, each acting on a different aspect of the bit. The eggbutt rings primarily influence the mechanical behaviour and stability of the bit, while the double-jointed mouthpiece and synthetic coating affect how contact and pressure are perceived within the horse's mouth.

Although all eggbutt double-jointed synthetic bits are based on the same principle, their action varies according to the shape, thickness and ergonomic design of the mouthpiece, as well as each manufacturer's specific engineering. Some models, for example, feature enhanced tongue relief or an anatomical profile designed to follow the natural shape of the horse's mouth more closely.

Our selection of eggbutt double-jointed synthetic bits

Our range includes several interpretations of this design to suit different horses and riders.

• The BR Bieman double-jointed apple-flavoured synthetic bit features an apple-flavoured mouthpiece designed to encourage salivation and improve acceptance from the very first contact.
• The Feeling double-jointed Flexi synthetic bit incorporates a flexible mouthpiece that absorbs small hand movements, providing an exceptionally soft feel in the horse's mouth.
• The Happy Mouth anatomical double-jointed bit features an anatomically shaped mouthpiece designed to follow the natural profile of the tongue and optimise pressure distribution.
• The Beris double-jointed synthetic bit benefits from the brand's expertise in ergonomic mouthpiece design, delivering particularly refined communication through the reins.

Caring for your eggbutt double-jointed synthetic bit

Synthetic materials retain their properties over time with simple, regular care. We recommend rinsing the bit with clean water after every use and allowing it to air dry. Abrasive cleaning products and stiff brushes should be avoided, as they can damage the surface texture and alter the feel experienced by the horse. Keeping the bit clean and free from damage is essential to prevent injuries to the horse's sensitive oral tissues. Regardless of how comfortable your horse is in the bit, it may still chew the synthetic coating. If bite marks or damage appear, the bit should be replaced to avoid the risk of injury inside the mouth.