Information AboutCurb Bit |
| CATEGORIES ABOUT CURB BIT | |
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THE CURB BIT The curb bit consists of a mouthpiece, Curb Chain , and a shank, with one ring per side on the top of the shank, and one ring on the bottom of the shank. Pelham Bit s also have a ring next to the mouthpiece. THE ACTION OF THE CURB BIT A curb bit works on several parts of a horses mouth.
THE SHANK A curb bit is a leverage bit, meaning that it multiplies the pressure applied by the rider. Unlike a Snaffle bit, the curb rein can amplify the rein pressure several times over, depending on the length of the curb bit's shank. The relation of the upper shank--the shank length from the mouthpiece to the cheekpiece rings-- and the lower shank--the shank length from the mouthpiece to the lowest rein ring, is important in the severity of the bit. A long lower shank in relation to the upper shank increases the leverage, and thus the pressure, on the curb groove and the bars of the mouth. A long upper shank in relation to the lower shank increases the pressure on the poll, but does not apply as much pressure on the bars of the mouth. Shank sizes vary from the Tom Thumb (2 inches long) to more than 5 inches, although most are less than 4 inches. THE MOUTHPIECE The curb bit's mouthpiece controls the pressure on the tongue, roof of the mouth, and bars. A mullen mouth places even pressure on the bars and tongue. A port places more pressure on the bars, and provide room for the tongue. A high port may act on the roof of the mouth as it touches, and will act as a fulcrum, amplifying the pressure on the bars of the mouth. Jointed mouthpieces increase the pressure on the bars as it breaks. THE CURB CHAIN The Curb Chain applies pressure to the curb groove under a horse's chin. It amplifies the pressure on the bars of the horse's mouth, because when it tightens it acts as a fulcrum. FITTING THE CURB Curbs are generally placed lower down in a horse's mouth than Snaffle bits, near or in the corners of the mouth. The lower the bit is placed, the more severe it is as the bars of the mouth get thinner and so pressure is more concentrated. The Curb Chain should be adjusted correctly, lying flat against the chin groove and only coming into action against the jaw when the curb ring is rotated 45 degrees. |
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