A combination bit is a type of horse bit that incorporates elements of more than one bitting system into a single design, most commonly combining the direct action of a snaffle with the leverage mechanics of a curb bit. The result is a versatile piece of equipment that gives the rider a broader range of communication options through the reins — often in a single bit where a double bridle might otherwise be required.
How a Combination Bit Works
The majority of combination bits on the market work on two simultaneous principles: direct rein pressure (acting on the corners and bars of the mouth as a snaffle would) and leverage (activating the poll and chin groove via shanks and a curb chain, as a curb bit does). Some designs add a third element — nose pressure — through a built-in noseband component, making them technically “three-in-one” combination systems.
When the rider takes up contact:
- The snaffle action works directly on the mouth, encouraging the horse to respond to rein pressure at a basic level
- The leverage element activates the poll, asking the horse to flex and lower its head carriage
- In designs with a noseband element, additional pressure on the nose reinforces the signal
The specific ratio and sequence of these actions varies significantly between designs, which is why combination bits are far from a one-size-fits-all solution. Choosing the right variant requires understanding the individual horse’s mouth conformation, training level, and sensitivity.
Common Types of Combination Bit
Several specific designs fall under the combination bit category:
- Pelham: The most widely used combination bit in British equestrian sport. Features a single mouthpiece with two sets of rings — a snaffle ring at the mouthpiece level and a shank ring below. When used with two reins, the rider can independently apply direct or leverage action. Converters allow use with a single rein but blend the two effects.
- Kimblewick (Kimberwicke): A fixed-shank curb bit with D-shaped rings that allow a mild leverage effect. Often used with a single rein and popular for horses that lean or need steadying in strong work.
- American Gag (Continental/three-ring bit): Features multiple rings on a rotating cheekpiece, allowing the rider to increase or decrease leverage by moving the rein attachment point. Widely used in cross-country and show jumping.
- Myler combination bit: Incorporates a built-in noseband into the headpiece, distributing pressure across the nose, poll, and mouth simultaneously.
When Is a Combination Bit Appropriate?
Combination bits are typically introduced when a horse requires more control or a more sophisticated conversation through the reins than a simple snaffle can provide, but the rider or situation does not suit a full double bridle. Common scenarios include:
- Cross-country and eventing, where quick, clear communication is essential at speed and the horse needs steadying on the approach to fences
- Horses that have become strong in a snaffle and pull against direct rein pressure
- Riders who want the refinement of poll flexion without managing two separate reins
- Show horses where a pelham or kimblewick is permitted under class rules
The FEI and British equestrian federation rules specify which bit types are permitted in each discipline — always check the relevant rulebook before competing with a combination bit, as some designs (such as the three-ring gag) are not permitted in dressage.
Fitting and Welfare Considerations
Because combination bits apply pressure to multiple areas simultaneously, fitting precision matters more than with a simple snaffle. The curb chain must sit correctly in the chin groove — two fingers’ width of slack when at rest is the standard guideline. The mouthpiece must sit at the correct height in the mouth without pinching the corners or pressing on the molars.
Riders should also be aware that using leverage bits requires educated, sensitive hands. A horse working correctly in a combination bit will seek a soft, consistent contact; one being jabbed or over-held will brace against the poll pressure and become tense through the neck and jaw — the opposite of what the bit is designed to achieve.
Frequently Asked Questions
Is a combination bit stronger than a snaffle?
Generally, yes — the leverage element multiplies the effect of rein pressure on the poll and chin groove, making the bit more powerful than a snaffle of equivalent mouthpiece design. However, strength is relative to the horse’s sensitivity and the rider’s hands. A well-schooled horse ridden lightly in a pelham can be far more comfortable than the same horse being hauled around in a snaffle by rough hands. The bit is only as strong as the hands using it.
Can a combination bit be used in dressage competitions?
Some combination bits are permitted in dressage at certain levels. The pelham, for instance, is allowed in some affiliated showing classes but is not permitted in FEI dressage. Always check the specific rules for your federation, level, and class before competing. When in doubt, contact your national federation or the competition secretary for clarification.
How do I know if a combination bit suits my horse?
Start with a professional bit-fitting consultation. A qualified bit fitter will assess your horse’s mouth conformation, tongue thickness, bar width, and sensitivity before recommending a design. If your horse has previously shown resistance, head-shaking, or evasion in a snaffle, the issue may not be strength — it may be an ill-fitting bit. Address any physical discomfort before changing bitting systems.