A double bridle is a bridle fitted with two bits simultaneously — a bradoon (a small snaffle) and a curb bit (also called a Weymouth) — together with two separate pairs of reins, one for each bit. It is the most refined and complex piece of bitting equipment used in mainstream equestrian sport, and it is reserved for horses that have reached an advanced level of schooling and for riders who have developed sufficiently independent and sensitive hands to use it correctly. At its best, the double bridle allows extraordinarily precise, nuanced communication between horse and rider with the minimum of visible aid.
How the Double Bridle Works
The two bits in a double bridle serve fundamentally different purposes and work together rather than in competition with each other.
The bradoon sits in the mouth above the curb bit and acts like a standard eggbutt or loose-ring snaffle, providing direct, one-to-one rein contact that lifts and positions the head. The bradoon rein is typically the more active of the two, used for direction and energy when required.
The Weymouth curb sits below the bradoon and operates through leverage, applying simultaneous pressure to the bars of the mouth, the poll (via the headstall), and the chin groove (via the curb chain). This creates a gentle squeezing effect that asks the horse to flex at the poll, close the jaw softly, and engage the hindquarters under the body. The curb rein should remain the quieter, more passive contact — a steadying influence rather than an active driving rein.
Used together, the bradoon asks for energy and direction while the Weymouth asks for collection and flexion. An advanced horse trained to the double bridle responds to subtle weight changes in the fingers — a slight closing of the hand on the curb rein prompts an immediate softening of the jaw and elevation of the forehand.
When the Double Bridle Is Used
In modern FEI competition dressage, the double bridle becomes mandatory from Prix St Georges level upwards. At this level and beyond — Intermediaire I and II, Grand Prix — the movements require a degree of collection, engagement, and responsiveness that is most precisely communicated through the double bridle. Judges expect to see it used with lightness and harmony; a horse that is resistant, tense, or behind the bit in a double bridle is penalised heavily.
In showing, the double bridle is traditional for many showing classes including working hunters, hacks, and cobs shown in hand or ridden. The neatness and elegance of presentation expected in the show ring has long included the double bridle as part of a correctly turned-out combination.
Outside competition, experienced riders may use the double bridle for refined schooling work on horses ready for it, as a tool for developing the highest levels of lightness and responsiveness. It is never a means of gaining more control over a difficult horse — that approach will reliably make matters worse.
Fitting the Double Bridle
Correct fitting of a double bridle is more involved than fitting a single snaffle bridle, and both bits must be positioned and sized correctly to avoid discomfort and conflict:
The bradoon should sit at the normal snaffle height in the mouth, creating one or two wrinkles at the corners of the lips. The Weymouth sits below it, resting on the bars of the mouth without creating wrinkles — it should sit quietly and not move when the horse is relaxed. The curb chain lies flat in the chin groove and engages when the Weymouth shank rotates to approximately 45 degrees.
Mouthpiece thickness matters greatly: a horse with a relatively small mouth, thick tongue, or shallow palate may struggle to carry two bits comfortably. In these cases, a thinner Weymouth mouthpiece reduces bulk. The combined thickness of both bits should not cause discomfort or force the mouth open.
Learning to Ride with a Double Bridle
Most riders are taught to hold the double bridle reins with the bradoon rein between the first and second fingers and the curb rein between the third and fourth fingers. This positions the curb rein naturally below and more passive, while keeping the bradoon rein slightly more active. Some traditions use a different grip, but the principle remains consistent: keep the curb rein light.
Taking lessons specifically on riding in a double bridle, ideally on a schoolmaster horse trained to respond to the equipment, is strongly recommended before using one in competition. The consequences of heavy or unsteady hands are significantly amplified with a double bridle, and developing feel on a forgiving, experienced horse first builds the right habits.
The British Horse Society recommends that horses be confirmed in all the required movements in a snaffle before progressing to a double bridle, and that riders have appropriate guidance from a qualified trainer before introducing the equipment.
Frequently Asked Questions
Can a novice rider use a double bridle?
Not safely. The double bridle is not for novice or intermediate riders, regardless of how well-schooled the horse is. With four reins and two leverage mechanisms, the potential for mixed signals, conflict, and discomfort is significant. A novice who needs to grab for balance will inadvertently apply strong curb pressure, which confuses and frightens a horse expecting lightness. The double bridle should only be introduced once a rider has an independent seat, quiet hands, and has been specifically instructed in its use.
What is the difference between a double bridle and a pelham?
Both use a curb chain and leverage action, but they work differently. A pelham is a single bit with both snaffle and curb rings on the same mouthpiece — it combines the actions into one bit and can be ridden with two reins or with roundings (a loop connecting the two rings). A double bridle uses two completely separate bits in the horse’s mouth at the same time. The double bridle provides more precise independent communication through the two separate mouthpieces; the pelham offers some of the same effect with less complexity. Horses that cannot comfortably carry two bits sometimes go very well in a pelham as an alternative.
At what dressage level is the double bridle required?
Under FEI rules, the double bridle is compulsory from Prix St Georges upwards. British Dressage rules broadly mirror this at equivalent affiliated levels. Below these levels, snaffles are the standard and double bridles are not permitted in competition. This rule exists because the double bridle is only appropriate for horses that are sufficiently advanced to carry and respond to it, and using it at lower levels before horse and rider are ready would compromise welfare and the quality of competition.