Mullen Hard Rubber Pelham Bit

A Pelham bit is a leverage bit designed to combine the actions of a snaffle and a curb (traditionally achieved separately by a double bridle) into a single mouthpiece, giving the rider both direct rein aids and additional leverage when needed.

Design

• The Pelham has a shank extending below the mouthpiece, with the mouthpiece ring at the top and a lower ring at the end of the shank.
• Two rein attachment points: The upper ring attaches to the cheekpiece of the bridle and also takes the snaffle rein, applying direct pressure similar to a plain snaffle. The lower ring is used for the curb rein (or a converter), engaging the shank's leverage action.
• It is used with a curb chain, which sits in the chin groove and engages when the curb rein is used.
• The mouthpiece can vary widely — mullen mouth, jointed, low-port, or even a "Rugby" style with a roller — depending on the desired feel and severity.
• Some riders use a "bit converter," "roundings," or a delta rein — connecting the two rings — allowing a single rein to be used instead of two, at the cost of losing the ability to apply snaffle and curb pressure independently.

Function

• Dual action, single mouthpiece: The snaffle rein (top ring) applies direct pressure on the bars and corners of the mouth. The curb rein (bottom ring) engages the shank, creating leverage that applies pressure simultaneously to the poll, the mouth, and the curb chain under the chin.
• Encourages rebalancing and softness: This combined action encourages the horse to rebalance, soften in the contact, and come down/forward to the bit, creating a framed, stable feeling.
• Adjustable severity via reins: A rider using two reins can blend between the milder snaffle action and the stronger curb/leverage action as needed, moment to moment — for instance, using mostly snaffle rein for steering and light contact, with occasional curb rein for half-halts or steadying.
• Leverage ratio depends on shank length: Longer shanks create more leverage and a stronger curb effect; shorter-shanked Pelhams are milder.
• With roundings/delta rein (single rein): Blends the two actions into a single, averaged pressure, sacrificing the fine control of separate reins for simplicity — often considered a "middle ground" bit, but less precise than using two reins properly.

What it's good for

• Horses that get strong or heavy in the hand: The Pelham can be useful for horses that become strong, lean on the rider's hand, or need extra help maintaining balance and control — particularly in jumping or faster work, where quick, effective half-halts matter.
• Riders skilled with two reins (or using a delta rein): Best suited to riders who can independently manage a snaffle rein and a curb rein, or who use a delta rein for a more unified but still leverage-assisted feel.
• Disciplines like hunting, showing, eventing, and polo: Popular in disciplines where extra control is wanted but a double bridle's complexity isn't practical or permitted.
• Horses that benefit from poll flexion cues: The curb action can encourage a horse to soften and flex at the poll, similar to (but milder than) a double bridle.
• As a stepping stone toward a double bridle: Some trainers use the Pelham to introduce a horse to the feel of curb pressure before progressing to a double bridle, since it combines both actions in one bit.

A note on severity, fit, and hand

• The Pelham is generally considered a stronger, more advanced bit than the fixed-cheek or loose-ring snaffles, and than the Kimberwick, due to its adjustable shank leverage and dual-rein capability.
• Pelham bits should always be used with a delta rein or two reins — never a single plain rein attached to just one ring — to ensure the bit functions and releases correctly.
• It should always be used with a soft, educated hand and a clear release when the horse responds, since the leverage action is only effective and comfortable when paired with good timing and feel.
• A properly fitted curb chain (with roughly 2 fingers' clearance) is essential for correct, comfortable action and to avoid pinching.
• Not recommended for green or inexperienced horses, or for riders still developing independent rein control, since incorrect or heavy curb rein use can create discomfort or confusion.

Competition legality

The Pelham is permitted in many disciplines — showing (including some show hunter and pony classes), eventing, showjumping, and polo — but like the Kimberwick, it is not permitted in FEI dressage competition, which restricts riders to a plain snaffle (or double bridle at advanced levels).

Summary

The Pelham is a leverage bit combining snaffle and curb actions in one mouthpiece, offering significant extra control through its shank and curb chain to help horses rebalance and soften — making it a popular choice for horses that get strong or heavy, especially in jumping and faster work, provided it's used with a delta rein or two reins and a soft, educated hand. It's generally considered more severe than snaffle-type bits, with no FEI dressage eligibility.

This combines the solid, joint-free mullen mouth with a rubber covering or construction, pairing the mullen's inherently gentle, non-folding mechanics with a soft, cushioned material.

Design

• A mullen mouth is a single continuous bar, not two bars joined at a hinge — with a slight curve or bow along its length to leave room for the tongue, rather than sitting perfectly straight across the mouth.
• Made of, or coated in, rubber — either vulcanized natural rubber (firmer, more traditional) or a softer synthetic rubber/TPU — often with a metal core running through for shape and strength, with the rubber forming the actual contact surface.

Function

• No nutcracker action: Because there's no joint anywhere in the mouthpiece, there's no folding or V-shaping under rein pressure — this eliminates the pinching, palate-contact sensation a jointed bit can create.
• Even, uniform pressure, further cushioned by rubber: The solid bar already applies fairly consistent pressure across the tongue and bars; the rubber's give softens this further, making contact feel warm and yielding rather than firm and unyielding, as a solid metal mullen would.
• Encourages the horse to stretch forward and down: As with any mullen, there's no sharp pressure point to brace against, so this mouthpiece is often specifically associated with encouraging a horse to relax the jaw and stretch into contact rather than resist it.
• Harder to evade than a jointed mouthpiece: Since there's no hinge to manipulate, a mullen mouth gives a horse less opportunity to duck behind the bit or evade contact by playing with a joint.
• Warm, approachable feel: Rubber stays warmer than metal, avoiding the "cold bit" sensation some horses object to, and its softness can help rebuild trust in horses that have had negative associations with harder mouthpieces.
• No leverage or added severity: As a true snaffle-family mouthpiece (when on a snaffle-style cheek), this works purely on direct pressure, with no shank or curb chain.

What it's good for

• Horses that dislike jointed bits generally: Some horses that seem uncomfortable or resistant in any jointed mouthpiece settle much better in a mullen, since the fundamental mechanics — not just the material — are different.
• Horses that tend to drop behind the bit or evade contact: The stable, non-folding surface removes the joint a horse might otherwise use to evade contact.
• Very sensitive-mouthed or apprehensive horses: The combination of no joint and soft rubber makes this one of the gentlest mouthpiece options available, useful for horses wary of harder contact or with a history of resistance.
• Horses with a low palate or larger tongue: Without a joint rising into the roof of the mouth, a mullen is often more comfortable for horses whose conformation makes jointed bits uncomfortable.
• Young or green horses starting bit training: The gentle, cushioned, joint-free action makes for an approachable, confidence-building introduction to contact.
• Driving horses: As with other mullen mouths, valued in driving disciplines for calm, stable, even action.

A note on leaning and durability

• As with other rubber mouthpieces, the softness is a double-edged quality — because there's no joint pressure and the material itself gives readily, some horses (particularly those already inclined to lean or brace) may find it especially easy to lean into, since there's very little resistance anywhere in the mouthpiece to signal "enough."
• Rubber is generally less durable than polymer or metal and can show wear (chewing, cracking) over time, especially with horses that are hard on their bits, so periodic inspection is worthwhile.

A note on classification

• The overall lateral action still depends on the cheek style (loose-ring, D-ring, eggbutt, Full Cheek, etc.) this mouthpiece is built into.
• This is generally considered one of the mildest mouthpiece types available, combining the inherently gentle, non-jointed mullen action with rubber's additional softness — likely the gentlest-feeling of the mullen material options (rubber, polymer, or metal).

Summary

A Rubber Mullen bit offers a solid, joint-free mouthpiece cushioned in soft, warm rubber — eliminating the nutcracker action entirely and providing especially gentle, evenly distributed pressure across the tongue and bars — making it one of the mildest options available, particularly well suited to very sensitive or apprehensive horses, those that evade jointed bits, or horses with a low palate, though its softness may invite leaning in horses already prone to that tendency, and it should be checked periodically for wear.