02/17/2026
How to know if your bit is the right size❓
Before you can evaluate, first make sure:
1️⃣ the bit in the correct position in the mouth (I have other videos that cover this), and
2️⃣ the bridle is on straight and the bit is centered in the horse’s mouth.
Now, do you have a loose ring bit or fixed cheek bit❔
🔹For fixed cheek bits, the cheek piece should just barely touch the corners of the mouth, or have up to 1/4” space between.
🔹For loose ring bits, make sure the lips are not contacting the ring, and have approx 1/3” space between the lips and the hole which the ring passes through.
Generally speaking, you want to size up for a loose ring bit to prevent the lips from being pinched 🤏
So, if your horse is a 5” eggbutt, they will likely be a 5.25” loose ring.
The acceptable tolerance for these rules also depends on the mouthpiece type and shape.
For example, Some bits (like a Myler level 1 type) will have extra curvature toward the ends that will make it “stick out” of the mouth a little more, especially when viewed from the front.
A bit too snug will pinch and chafe the lips, and can push the lips inward towards the molars, which can cause blisters and even lacerations (horse’s teeth can be sharp!)
A bit too loose will slide through the mouth more freely and can be very disruptive and uncomfortable. Depending on the mechanics/mouthpiece type, It can also push the lips inward, risking chafing and blistering.
Still unsure if your bit is the right fit for your horse? Reach out for a consultation - I am happy to help! 🙋🏼♀️
🎥 & 🐴 thanks to