Western & English Bits A horse bit is a piece of metal, rubber, or synthetic material attached to a bridle that fits in the interdental space (bars) of a horse's mouth to facilitate communication, control speed, and direct movement via rein pressure. Bits generally consist of a mouthpiece and cheekpieces (rings or shanks). Key Components and Types: Snaffle Bits: Common, non-leverage bits with rings on each end of the mouthpiece; they apply direct pressure to the mouth, tongue, and bars. Curb Bits: Utilize shanks for leverage, acting on the bars, chin groove, and poll, often used in Western riding or for greater control. Mouthpieces: Can be jointed (broken) or straight (mullen), sometimes featuring rollers to encourage a relaxed jaw. Cheekpieces: Determine how the bit acts (e.g., eggbutt, D-ring, full cheek)