My pony currently rides in a pelham bit and I was wondering if someone could tell me more about this type of bit as I am loaning him and have never ridden a horse with one before.
The most important thing is to know how and what length to fit the curb chain. It should be un twisted so that it lies flat, and come into action (i.e. Touch the jaw) when the reins are shortened so that the bit is at 45 degreees.
The Pelham is a combination of a Bridoon bit & a curb bit with just one mouthpiece. The mouthpiece is usually unjointed, with either a mullen mouth - slightly curved or with a Cambridge mouth - a small loop in the mouthpiece that allows space for the tongue.
Fitting it correctly is important as unless fitted correctly it can be uncomfortable for the pony.
The bit sits in the mouth with the tiniest of wrinkle in the corners of the mouth. The curbchain is brought through the ring of the bit on the off side and then twisted clockwise until all the links lie flat. The chain is given a half turn again and the bottom of the chain hooked over the hook. Again as with the off side the chain is brought through the bit ring. The chain should be loosely fitted so that it doesn't come into action until the curb shanks have moved 45°.
Fitted this way the chain will come into action in the chin groove and will also not pinch the sides of the mouth between the bit & the chain. It can be used with two reins or is often fitted with roundings that allow just one rein to be used.