The main point of action that is addressed in horses via a bit is the tongue. All bits containing a mouthpiece act on the tongue, which consists mainly of muscles. When using a bit with leverage effect, extra points of effect on the horse’s head are addressed. That means that the pressure exerted by a rein aid not only affects the tongue. It is distributed to different influence points.

When using lever-action bits, the rider first affects the tongue and poll. When using a curb chain or chin strap, to limit the pressure on the sensitive poll, the lower jaw is also addressed. For choosing a bit it is important to know and understand 2 points. How do horses react when pressure is applied to the influencing points? And why you want to cause this reaction.

The theory behind bits with leverage effect With snaffles, eggbutts, etc., the rider communicates with the horse via the tongue. The tongue consists mainly of muscle tissue. This tissue cushions the pressure the bit exerts onto the lower jaw. The rider tells the horse how to react by using asking and giving rein aids.

If the horse evades the reins by raising its head, the rider can no longer address the “tongue” and loses control. The bit no longer affects the tongue, but moves into the free space towards the molars. 

To regain control in such situations, pressure can be applied to the neck by lever-action bits. The poll of a horse is very sensitive. To avoid this pressure horses start to lower their head. This enables the rider to act on the tongue again and regain control. The rider should be careful not to exert pressure to the poll too much or too long. He or she should release the pressure as soon as the horse lowers its head. 

For the use of lever bits, the rider should have a balanced and independent seat and should also be able to give differentiated and sensitive rein aids. 

These bit forms are counterproductive for horses that basically have a too low head position or pull down. They are not recommended as they further intensify this problem. If you are having any problems why no speak to one of our Bitting Specialists on our FREE advice line: 01405 861800