
Loren Wellings
Founder of Horse Bit Emporium | Professional Bit Fitter since 2014
When riders describe a horse as stiff, they’ll usually say the horse is hard to bring into the contact, fights the rein, or feels strong and resistant. Often there’s also locking through the jaw, and the horse can be difficult to turn or bend.
In a lot of these horses, I see tension through the middle of the neck, around where the brachiocephalicus meets the splenius. The horse will look more fixed and tense through this area, rather than soft and elastic, similar to the first image (above) in this article.
I tend to see this more in horses where they take part in disciplines of more straight lines than bending and flexion is required. Also seen more in older horses or those that have had some kind of biomechanical issue in the past.
My first preference is always to rule out pain or restriction, ideally with a vet because the bit won’t fix a physical problem. From there, I generally lean toward softer, more forgiving mouthpieces that the horse is happy to accept.
Where things often go wrong is riders choosing bits that create more “action” in the mouth, particularly those that apply a squeezing effect. These can feel like they unlock the horse at first, but longer term they often lead to more tension, not less.
Instead, I look for bits that help the horse feel more comfortable in the contact so they don’t feel the need to brace in the first place.

Another factor I do see quite often is a horse that has learned to protect its mouth.
This can come from a previous riding style, whether that’s inconsistent contact, harder hands, or being over-bitted for a period of time. The horse stops trusting the contact and instead of taking a feel forward, they brace, lock through the neck, and hold themselves to protect the mouth.
In these cases, the stiffness isn’t just physical, it’s a learned response. The horse is trying to avoid pressure rather than work through it.
I always think back to a fitting I did years ago down in the Geelong region of Victoria. My client was a 15yo rider who had brought along her showjumping horse. It was a 13-year-old, 16hh Thoroughbred gelding, with a load of experience at the heights. He came with a French link baucher and a French link 4-ring gag.
The horse was extremely difficult to rider; no brakes, no turning, running at jumps and generally hard to stop!
We worked through a number of options you would typically consider for a stiff horse, but everything made him harder.
In the end, I put him in a Bombers Moulded Mullen - in my opinion, one of the softest dressage-legal options available

The change was immediate. He responded to the aids, softened in the contact, and became a completely different ride. For jumping he went in the Bombers Williams Moulded Mullen.
For me, that was a good reminder that not every stiff horse needs more action or complexity. Sometimes they need the opposite, something simple, soft, and consistent that they can learn to trust again.
If your horse:
It’s often a sign the horse doesn’t need more pressure, they need more confidence in the contact.
This is where simpler, more stable, softer mouthpieces can make a significant difference.
Most often stiff horses that won’t respond to soft or rubber bits, but it is definately worthwhile giving the horse benefit to try. However horses particularly those that have learned to brace, run through the contact, or simply ignore lighter aids then we move to bits for stiff horses.
In these cases, the goal isn’t to go stronger for the sake of it, but to create clarity.
Some horses actually relax better when the signal is clearer and more defined. Rather than leaning or locking against a soft, vague feel, they respond to something that gives them a more direct and consistent boundary.
This is where certain bit designs can be useful, not because they are harsher, but because they:
The key is choosing a bit that creates clarity without creating tension.
With these horses, I’m not looking to overpower them. I’m looking for:
Once that clarity is established, many horses can then transition back into a softer, more forgiving mouthpiece.

It’s a 3-piece design covered in TPU, which gives a softer feel in the mouth, but the shape of the mouthpiece still creates a level of guidance. The angles encourage the horse to follow the bit and take a more consistent contact, rather than fixing against it.
It’s a nice balance between soft acceptance and subtle direction, which is why it works well for many stiff horses.
Best for: Horses that need guidance into the contact but prefer synthetic.
(Winner – 2024 BETA New Product Award)

It has a shallow port to allow tongue relief, combined with a roller in the centre. The roller creates a more defined point of pressure, which the horse can’t completely avoid when asked to soften, turn, or come into a more correct frame.
This can be very effective for horses that ignore softer bits or tend to push through the contact. We like the Baby Fulmer for these cases as the cheekpiece will guide the horses head laterally but not keep it locked in place.
Best for: Horses that need clearer signals for turning, flexion and “chin in” responses.

If the Julia isn’t enough, this is often my next step.
It follows a similar concept but with a more pronounced port, which increases tongue relief and can help encourage lift through the shoulder and front end.
This is a stronger influence, but still works by encouraging the horse to stop bracing rather than simply applying pressure.
Some riders, particularly showjumpers, will choose this design in a D-ring for additional turning support.
Best for: Horses that are very set, strong, and need more lift and response through the contact.

The Baucher cheekpiece changes the angle of the bit slightly when the reins are taken up.
This rotates the mouthpiece onto the tongue and brings the horse’s attention more clearly to the contact. It can be useful for horses that feel inattentive, heavy, or disconnected. These bits can work well for the Pony or Cob that is reluctant to listen to the rider.
Best for: Horses that need more attention to the contact and a clearer, more consistent feel.
Depending on your discipline and setup, you may also look at:
Gags or Leverage bits for showjumping or eventing Stiff Horses:
Bradoon Bit Options for Stiff Horses:
Bit Options for Strong or Extremely Stiff Horses:
There isn’t one single “best” bit for a stiff horse, as it depends on why the horse is bracing. In many cases, a softer, more stable mouthpiece helps the horse relax and take the contact. For horses that ignore lighter aids, a bit that offers clearer signals can improve responsiveness without adding unnecessary pressure.
A horse that feels stiff or fights the contact is often bracing through the neck and jaw. This can be due to discomfort, past riding, or a lack of clarity in the contact. Many horses develop a habit of protecting their mouth, which leads to resistance, leaning, or difficulty bending.
Not always. While some horses benefit from a bit that provides clearer communication, going stronger too quickly can increase tension. The goal is to find a bit that the horse feels comfortable in, so they stop bracing and begin to soften, rather than resist the contact.