Mullen Mouth Pelham (Thin) (KOR) * *

Pelhams are a good way of riding with two reins but only having to have one bit in the horse's mouth. 

It is crucial with any curb bit to set the curb chain correctly. You twist the curb so that it sits flat, then lay it across the back of the jaw and pick up the bottom rein, gently pull it so that you get the angle right as if it were in the rider's hand. The cheek of the bit should only go to 45 degrees and then the chain should be snuggly tucked into the jaw, stopping the cheek moving any further over. If the chain is too loose you spoil the balance of the bit. Apply too much downward mouth pressure and the curb chain won't balance.