11/14/2025
How does a running martingale affect the bit and bridle❓
A running martingale (also called a “training fork”) is an attachment anchored by the girth, with rings which the reins are run through.
When the upper limit is reached, and the horse’s mouth is higher than the rings, it will apply downward force on the bit, ‘encouraging’ the horse to lower its head. The main purpose of this training tool is to discourage head tossing/flipping or carrying the head too high that the horse could put themselves or the rider’s safety at risk - but there are other purposes, too!
When engaged, the working angle of the bit changes and more downward force is applied on the tongue/bars ⬇️. There is also a pulley-effect that occurs which enables the rider to apply more-than-perceived downward force on the horse’s mouth 😮.
Therefore, these should be used with great caution and adjusted so that at rest, the rings can be pulled upwards at least to the point of the withers ⏫️.
These should also ONLY be used with a snaffle as the use on a curb or gag will have harsh and undesirable effects 👎🏻 (I covered this more in my story series on Wednesday).
But a running martingale is not a terrible tool when used properly. Here’s a breakdown on the good and the bad…
PROS:
🔹Can help discourage head tossing/flipping
🔹Can promote straighter outline/head carriage for green horses
🔹 Can help reins stay in place in the event of a fall
🔹 Subtle “noise” created by the rings (when not engaged) can promote softness in the rider’s hands and heighten sense of awareness of rein tension.
🔹 Can help beginner riders - limiting over-opening of the reins, helps straighten horse
CONS:
🔸 “Noise” created by the rings can be bothersome for the horse and muddle pre-signal.
🔸 Pulley effect when engaged will amplify the downward forces on the mouth. Rider can easily lose sense of force applied vs. force perceived.
🔸 Tool becomes unfair to the horse if adjusted too low (that is, below the level of the withers)
Is your horse often evading the bit by head tossing / inverting? It may be a bit problem - reach out for a consultation 🙋🏼♀️ I am happy to help!