Double reins are a hallmark of advanced equestrian riding, used in dressage, showing and hunting. They give the rider independent control over two bits — the bridoon (a small snaffle) and the curb bit (a Weymouth) — each with its own rein. Learning how to hold double reins correctly is essential for clear communication and your horse’s comfort.
This guide covers every common rein hold, explains the mechanics of each rein, and walks you through transitioning to a double bridle with confidence.
Table of Contents
Understanding the Double Bridle
A double bridle uses two separate bits that sit together in the horse’s mouth. The bridoon is a thin snaffle bit that sits higher in the mouth, resting on the tongue and the corners of the lips. The curb (or Weymouth) sits lower and works through leverage, applying pressure to the poll, the bars of the mouth and the chin groove via the curb chain.
Each bit has its own rein, giving you four reins to manage — two in each hand. The bridoon reins are typically thicker or have a different texture (laced or rubber-grip) so you can distinguish them by feel. The curb reins are narrower and smoother.
This dual system allows incredibly refined communication. You can encourage flexion and collection through the curb whilst maintaining steering and lateral control through the bridoon — provided you hold and manage the reins correctly.
Methods of Holding Double Reins
There are three widely recognised methods of holding double reins. Each has advantages depending on your experience level, discipline and personal preference.
The 3-and-1 Method (Traditional British)
This is the most commonly taught method in British riding schools and the one recommended by British Horse Society (BHS) instructors. It is sometimes called the “two-and-two” or “crossed reins” hold.
To use this method:
- The bridoon (snaffle) rein enters the hand from below and passes between the ring finger and the little finger.
- The curb rein enters from below and passes between the middle finger and the ring finger.
- Both reins travel up through the palm and exit over the top of the index finger.
- The thumb presses down on both reins to secure them.
This keeps the bridoon rein on the outside (closest to the little finger) and the curb rein one finger further in, giving you independent control over each. The bridoon is your primary steering rein, held slightly shorter, whilst the curb sits with a fraction more slack.
The Fillis Method
Named after the 19th-century horseman James Fillis, this method avoids crossing the reins within the hand. It is popular in classical dressage and on the continent.
To use this method:
- The bridoon rein passes over the top of the little finger (on the outside of the hand).
- The curb rein passes between the little finger and the ring finger.
- Both reins travel up through the palm, separated by the little finger.
- The thumb secures them at the top.
The advantage of the Fillis hold is simplicity. Because the reins run parallel rather than crossing, it is easier to adjust each rein independently. Many riders find the transition from single reins to double reins less confusing with this method.
The 3:1 Hold (Classical)
The 3:1 hold places three reins in one hand and one rein in the other. It is used in classical riding traditions and by experienced riders working on advanced movements.
To use this method:
- The left hand holds the left bridoon rein, the left curb rein and the right curb rein.
- The right hand holds only the right bridoon rein.
- The left hand acts as the “base” hand, maintaining overall contact, whilst the right hand manages lateral flexion.
This hold requires excellent independent seat and a high degree of feel. It is not recommended for riders who are new to double reins, but it offers superb refinement for collected work such as piaffe and passage.
Which Method Should You Choose?
For most British riders, the traditional 3-and-1 method is the standard starting point. It provides clear separation between reins and translates well to both dressage and showing. The Fillis method suits riders who struggle to keep reins separated, or those training in a classical tradition. The 3:1 hold is reserved for advanced riders with an established seat.
Whichever method you choose, the fundamental principle is the same: the bridoon rein should carry slightly more contact than the curb, and the curb must never be used as a primary aid.
How Each Rein Works
The Bridoon (Snaffle) Rein
The bridoon acts much like any snaffle bit. It works primarily on the corners of the lips and the tongue, encouraging the horse to flex laterally and respond to directional cues. In a double bridle, the bridoon is your main rein — the one you steer with, ask for bend through and use to maintain a consistent contact.
Think of the bridoon rein as doing the same job as your normal snaffle rein. The only difference is that it is slightly thinner because it shares mouth space with the curb.
The Curb Rein
The curb rein activates the Weymouth bit’s leverage mechanism. When you take up the curb rein, the shanks rotate backwards, tightening the curb chain under the chin groove and applying poll pressure via the cheekpieces.
This encourages the horse to flex at the poll and bring the nose towards the vertical — what riders call “coming into a frame.” The curb should only ever be used with gentle, nuanced pressure. Even a small increase in tension produces a significant effect through the leverage ratio.
A good rule of thumb: if you can see the curb chain tightening, you are using too much curb. The action should be almost invisible from the ground.
Transitioning to Double Reins
Start with a Pelham
Before moving to a full double bridle, many instructors recommend riding with a pelham and two reins. A pelham uses a single bit with both snaffle and curb rein attachments, which gives you the experience of managing four reins without the complexity of fitting two separate bits.
This is an excellent stepping stone. You will learn how to hold double reins, adjust their length independently and coordinate both sets of aids — all whilst your horse deals with a simpler mouthpiece arrangement.
Practise on the Ground
Before your first ride with double reins, spend time holding two pairs of reins unmounted. Thread them through your fingers using your chosen method and practise shortening one set without disturbing the other. Many riders find it helpful to loop reins over a fence rail or a saddle horse to simulate the feel of contact.
Your First Sessions
For your first few rides in a double bridle, keep things simple:
- Work in walk and trot only — do not canter until you are comfortable managing the reins at slower gaits.
- Focus on maintaining an even, quiet contact on the bridoon whilst keeping the curb rein just resting against the horse’s mouth.
- Ride movements you know well — 20-metre circles, changes of rein across the diagonal, simple transitions.
- If you feel yourself gripping or getting tense, return to walk and re-establish a soft hand position.
Have an experienced instructor on the ground to watch your hand position and give real-time feedback. Double reins magnify every hand fault — a busy or heavy hand that goes unnoticed with a single rein will be immediately apparent to the horse with two.
Fitting a Double Bridle Correctly
No amount of correct rein-holding will help if the bridle does not fit properly. A poorly fitted double bridle causes discomfort and resistance, and many problems blamed on rider error actually trace back to incorrect fitting.
Bridoon Position
The bridoon sits higher in the mouth and should create a single wrinkle at the corners of the lips — the same as a standard snaffle. It must sit above the curb bit without pressing against the teeth.
Curb Position
The curb hangs below the bridoon and should rest quietly against the bars of the mouth without creating any wrinkles. There must be enough space between the two bits so they can act independently — roughly a finger’s width.
Curb Chain
The curb chain should lie flat in the chin groove (twisted until flat, with the lip strap link hanging down). It should come into action when the shanks rotate to approximately 45 degrees. A chain that is too tight causes constant pressure; one that is too loose allows the shanks to rotate too far before engaging, producing a harsh, sudden action.
Noseband
A double bridle must be used with a cavesson noseband. Flash, drop and grackle nosebands are not permitted. The cavesson should be fitted to allow two fingers’ width between it and the front of the nasal bone.
If you are unsure about fitting, consult a qualified bit fitter or saddler. Many tack shops and breed societies offer fitting clinics.
Common Mistakes with Double Reins
Using Too Much Curb
The most frequent error is relying on the curb rein for steering or slowing down. The curb is a refining aid, not a braking mechanism. If your horse is not responding to the bridoon alone, the issue lies in training — not in pulling harder on the curb.
Letting Reins Slip
Managing four reins is a physical skill that takes time to develop. Reins slipping through the fingers is common in the early stages. Rubber-grip or laced bridoon reins help with this. Practise adjusting rein length frequently in walk until it becomes automatic.
Losing the Distinction Between Reins
If both reins end up at equal tension, you lose the purpose of having two bits. Always maintain the bridoon as your primary contact. A useful check: at any point during your ride, you should be able to release the curb rein entirely without your horse’s outline changing significantly.
Riding Before the Horse Is Ready
A double bridle is not a shortcut to collection. Your horse should already be working in self-carriage on a snaffle before you introduce a double. If the horse leans, evades or drops behind the contact in a snaffle, these problems will be amplified — not resolved — by a double bridle.
When to Use a Double Bridle
Dressage
Under British Dressage (BD) rules, a double bridle is permitted from Advanced Medium level and is compulsory at Prix St Georges and above. Internationally, the FEI requires a double bridle at Grand Prix level. The double bridle is viewed as a tool for refinement — demonstrating that the horse and rider partnership has reached a level where subtle, independent rein aids are possible.
Showing
In British showing, double bridles are standard for ridden hunter, hack, cob and riding horse classes. They are considered correct turnout for horses aged four and over in most affiliated showing classes. Ponies and young horses are typically shown in a snaffle or pelham.
Hunting
Some riders use a double bridle or pelham for hunting, particularly on strong, well-schooled horses. The curb provides additional control in open country whilst the bridoon allows for the lighter riding needed during slower phases.
Building Confidence with Double Reins
Riding with double reins can feel overwhelming at first. Four reins, two bits and the responsibility of not causing discomfort — it is a lot to process. But every advanced rider has been through this learning curve, and consistent practice makes it second nature.
Start with short sessions of 15 to 20 minutes in a double bridle, then switch back to a snaffle for the remainder of your ride. Gradually increase the time as your hands become more educated and your horse settles into the new contact.
Incorporate exercises that demand independent rein use: shoulder-in, leg yield and transitions within the gait all require you to manage each rein separately whilst keeping your overall hand position quiet and stable.
Above all, prioritise your horse’s comfort. If the horse shows signs of tension — grinding teeth, tilting the head, becoming tight through the jaw — simplify what you are asking and check your rein contact. The goal of double reins is lightness and precision, not restriction.
Frequently Asked Questions
What is the best way to hold double reins for beginners?
The traditional 3-and-1 method (also called the two-and-two hold) is the most beginner-friendly approach. The bridoon rein sits between the little finger and ring finger, the curb between the ring finger and middle finger. This gives clear separation and makes it easier to feel which rein you are adjusting. Many instructors also recommend the Fillis method, which keeps the reins parallel rather than crossed, making it simpler to shorten or lengthen each rein independently.
How can I avoid pulling too hard on the curb rein?
Keep the curb rein fractionally longer than the bridoon so it rests with light contact rather than active pressure. Focus on using your seat, legs and bridoon rein as primary aids — the curb should only be engaged with the gentlest closing of the fingers. If you find yourself relying on the curb, return to working in a snaffle until the horse responds consistently to lighter aids.
Are double bridles cruel?
A double bridle is not inherently cruel — it is a precision tool. In educated hands on a suitably trained horse, it enables lighter and more nuanced communication than a single bit. However, in unskilled hands or on a horse that is not ready, a double bridle can cause pain and confusion. The key factors are correct fitting, a horse that is already working well in a snaffle, and a rider with an independent seat and quiet hands.
At what level can you use a double bridle in dressage?
Under British Dressage rules, a double bridle is permitted from Advanced Medium level. It becomes compulsory at Prix St Georges and above. At FEI level, it is required from Intermediate I upwards and mandatory at Grand Prix. At lower levels, riders must use a snaffle. This progression ensures horses have a solid foundation before the more refined aids of a double bridle are introduced.
Should I practise with a pelham before using a double bridle?
Yes, riding with a pelham and two reins is an excellent stepping stone. A pelham uses a single bit with both snaffle and curb attachments, so you gain experience managing four reins without the complexity of fitting two separate bits in the horse’s mouth. Once you are comfortable adjusting and coordinating both reins on a pelham, the transition to a full double bridle is much smoother.
How do I know if my double bridle fits correctly?
The bridoon should sit high enough to create a single wrinkle at the corner of the mouth, just like a standard snaffle. The curb hangs below it with roughly a finger’s width of space between the two bits. The curb chain should lie flat in the chin groove and engage when the shanks rotate to about 45 degrees. A cavesson noseband must allow two fingers’ width of space. If in doubt, book a session with a qualified bit fitter or saddler.
