How to choose the right bit for a strong horse

When a rider tells me their horse is strong, I try to separate the horse from the label. Strong may describe a horse who drives forward under light contact, one who pulls or leans, or one who takes offence at the first half halt. It may also mean a horse has learned that leaning against a bit creates more tension than accepting one. Describe the exact behaviour you want to change before searching for a stronger bit.

A bit cannot repair a saddle that rubs, sharp teeth, a confused schooling aid or a rider who keeps pulling after the horse has answered. Before browsing catalogues, I would have the mouth checked by a vet or equine dentist and ask a saddler to assess pressure points. Sudden problems also warrant checks for lameness, a poorly fitted bridle and handler tension. These basics matter because Australian riders often travel long distances in horse floats, and a simple mechanical or health problem should be solved before spending on new metal.

Bit language in Australia is blunt and practical. At a yard in the Hunter Valley, “he’s strong” can cover everything from a willing forward horse to one braced against the hands. Campdraft and stockwork horses often enter eventing homes with fixed habits, so their familiar stock bits may be the first ones a rider tries. Riders travelling to Melbourne or Adelaide horse trials may use a bit learned in another discipline. Climate matters too: hot, dry arena footing can produce very different feedback from soft ground after coastal rain.

My own method starts with the current setup, because changing the bit, horse, rider aid and environment together hides the cause. I keep the existing tack, watch the horse on the flat and over a small fence, and note what changes. The aim is not to prove that new metal will fix everything. It is to find a setup that reduces tension, preserves clear communication and lets the horse remain willing through each phase of a horse trial.

Start with the horse, not the bit

A useful first session is not a bit-testing marathon. I watch the horse on the flat, over poles and, where relevant, at a small fence. I record whether contact stays even, whether the horse can stop and turn, and whether tension appears before or after the rider asks. Video helps because a rider may notice the horse’s expression but miss the moment their hands arrive late. The aim is to identify the problem, not prove that new metal will fix it.

Physical comfort comes next. Have the mouth checked after a recent bit-related problem, and inspect the bridle for sharp edges, uneven cheek pressure or a tightened noseband. A saddle or back issue can make a horse pull against the reins to escape discomfort. Notice whether the horse has a dry mouth or sores at the corners. If something hurts, changing leverage may hide the symptom for one ride while worsening the underlying problem.

Training history is just as useful. A horse schooled to move on a loose rein may object to a rider who takes a firm, fixed contact, while one accustomed to a deep outline might need clearer timing before trying something lighter. Look outside the saddle too: does the horse brace when asked to stand or turn on a lunge? A handler who can lead, lunge and turn the horse calmly often reveals more than another attempt on a circle.

Define what strong means in context

What counts as strong changes with the phase of work. In dressage, a horse may need to accept a connected rein without becoming rigid. Over showjumps, an overly strong hand can leave the horse waiting for contact instead of following the rider’s balance. Across country, the priorities are an independent lower hand, a stable upper body and the ability to wait for a cue at a drop or narrow fence. A bit that helps in the arena may be a poor choice at a water complex.

At water, the picture becomes even clearer. My water crossing lesson is a useful reminder that a horse who stops is sending information, not presenting a bitting challenge. Nerves can tighten the rider’s fingers, the horse can search for the safest line, and a familiar bit may not remove that tension. I would change one factor, ride the same approach again and judge whether the horse becomes more responsive.

Rider influence belongs in the same conversation. If the horse cannot take a straight line, soften the hands and see what happens. If it walks, halts and turns but becomes tense only when the rider closes the reins, the issue may be contact rather than equipment. Ask a coach or independent instructor to watch from the side. In Australia, a bitting fitter, qualified coach and equine dentist may be three separate people, which is useful because each sees a different part of the problem.

Match the pressure to the task

A plain snaffle is often the sensible baseline because rein pressure is communicated mostly through the corners of the mouth without a lever acting on the jaw. French-link and other multi-part snaffles can change the feel and, for some horses, reduce directness, but extra links are not automatically kinder or sharper. For a horse that pulls at the walk, I am interested in whether the rider can establish rhythm, straightness and a useful half halt before reaching for more metal.

A double bridle can help a rider separate requests about the head from requests about the lower neck because the reins run through separate rings. That separation is useful for some horses and training phases, yet it gives the rider more ways to become inconsistent. The independent rings also make contact easy to lose or mix up. If the horse is already confused by hand movements, a complicated setup may reveal the confusion rather than solve it.

Pelham, curb and gag-style bits introduce leverage, so I compare their geometry with a fitter rather than putting them on a severity ladder. A longer curb shank can increase leverage, while a shorter shank may preserve a softer outline. Some horses run through a light curb, others become wary of its poll action. A gag raises the bit on one rein and suits particular horses and tasks, but it is not a sensible shortcut for a horse described only as strong. More pieces can mean more precise communication, or simply more ways to confuse the horse.

Check fit and rider influence

Width and fit can change a bit more than its name suggests. A bit that is too narrow can pinch the bars or push the tongue into the hard palate; one that is too wide may slide around and damage the corners. Ring size must match the horse’s conformation, and the bit should sit centrally with a little space at the bars rather than jamming against them. I prefer a fitter to check this on the horse because a photo cannot show how the cheeks feel when the head is lowered.

Material affects acceptance, though not in a predictable ranking. Sweet iron may encourage some horses to salivate, copper can appeal to some mouths, and a soft rubber covering may suit a tender horse. Rubber can also make signals feel vague, so the rider must offer cleaner aids. A polished metal bit may be less appealing to a horse used to a particular surface. I would keep the mouth comfortable and watch for rubbing rather than choosing a trend because the horse has a striking circle on day one.

The bridle, reins and rider can swamp the bit. Longer reins may encourage the rider to hunt for contact; a fixed, narrow hand may make a mild bit feel severe. Nosebands and martingales should support good riding rather than restrain a horse that has not yet learned to balance. For jumping, I check that the flash attachment sits correctly and that nothing tightens when the head comes up. If the horse starts pulling harder after a tack change, simplifying the aids is usually wiser than adding another strap.

Trial changes before competition

When I trial a bit, I change one variable and keep the rider’s aids recognisable. The horse rides on familiar flatwork for several sessions before I add anything challenging. I note the first reaction, contact at walk and trot, the half halt, canter transitions and, if relevant, a fence or water approach. A day with no obvious problem can be more informative than one exciting ride. New metal can temporarily make a horse sharper, so I give the setup time to settle before judging it.

Before buying, I want advice from someone whose main job is to assess the individual horse, not sell a particular range. For background, I keep YoroW bitting guidance open alongside that hands-on assessment. The final test should happen on the rider’s own horse, in the rider’s own tack, with an experienced eye present. A professional fitting is not a guarantee, but it reduces guesswork and gives the horse a fair trial.

Buying in Australia adds a practical layer. Mail-order sellers and metropolitan saddleries stock school snaffles, imported stock and jumping bits, but what is pictured is not always what arrives. Brand fit can vary, so I measure the actual bit rather than assume one model matches another. Exchange rates, postage and return terms affect the final cost. I would ask about returns before buying, borrow the bit for a trial where possible and allow a newly purchased piece to settle before adjusting it.

Make the decision and take the next step

A bit is a long-term tool rather than a lucky charm. I check that it suits the horse’s age, mouth condition, training level and the work ahead, then confirm it is permitted in the relevant competition. Eventing often involves different needs in dressage, showjumping and cross-country, and riders may choose separate legal bits for those phases. A horse competing through a hot summer or travelling from a stud to a metro trial also needs a setup that remains comfortable on the difficult days.

I use a simple set of standards before keeping a change: no rubbing or pain, a clear aid, willingness through transitions and soundness, and enough help for the rider to stay balanced. Comfort comes first, followed by communication and then performance. If a severe-looking option works only by making the rider tense, it is the wrong partnership. If a milder option creates confusion because the rider is asking for two things at once, better schooling may be needed instead of more metal.

Make the next move concrete: write down the behaviour you want to change, arrange a qualified bitting consultation and request a home trial of one or two sensible options. Bring your observations, competition notes and any concerns about the horse’s mouth or back. If you ride a strong horse, share the setup that gave you the clearest contact in the comments, including the bit, bridle, reins and the phase of the horse trial. Honest field notes help other Australian riders far more than claims that one piece of tack solves every strong horse.