Curb bits are classified as what type of bits?

Curb bits are classified as leverage bits because they are designed to provide a mechanical advantage to the rider through the use of a shank and a curb chain or strap. When the reins are pulled, the shank creates torque on the horse's mouth, allowing the rider to apply a stronger pressure with less effort. This is especially useful in guiding the horse or performing advanced maneuvers. The leverage allows for more control, which is why curb bits are often used in disciplines that require precise and coordinated communication between horse and rider.

In contrast, direct action bits operate without a shank and exert pressure directly on the horse's mouth without the leverage effect. Breaking bits usually refer to bits that have a joint in the middle, allowing for more flexibility in the mouthpiece, while double-jointed bits have two joints for enhanced comfort and movement but do not provide the leverage characteristic of curb bits.