What category does the Pelham bit fall under?

The Pelham bit is classified as a curb bit because it incorporates elements of both a snaffle and a curb. It features a more severe leverage action due to the shanks that allow for curb pressure when the reins are pulled. This design provides the rider with greater control over their horse, especially in situations where a more responsive bit is necessary. The Pelham's ability to function as both a snaffle and a curb simultaneously makes it effective for various disciplines while helping to communicate clearly with the horse.

While it is true that many bits can be categorized into jointed bits, snaffle bits, or hybrid bits, the defining characteristic of the Pelham is its curb action, which is designed to provide leverage. Therefore, it is best classified under curb bits.