Hartell Sliding Pelham Bit

A Sliding Pelham (also called a "sliding cheek" Pelham) is a Pelham variant where the mouthpiece is not rigidly fixed to the shank at a single point, but can move — sliding up and down along the shank to some degree — rather than the shank and mouthpiece being permanently fixed together as on a standard ("fixed cheek") Pelham.

Design

• Like any Pelham, it has a shank with an upper ring (snaffle rein, attaches to the bridle cheekpiece) and a lower ring (curb rein), and is used with a curb chain.
• The distinguishing feature is that the cheeks/shanks slide, meaning the mouthpiece has some freedom of movement along the shank rather than being fixed at one set position.
• This is functionally similar to the "sliding cheek" option seen on some Weymouth/curb bits as well, where the mouthpiece can shift slightly rather than staying locked in place.

Function

• Self-adjusting mouthpiece position: The sliding action allows the mouthpiece to settle and reposition slightly within the mouth as the horse moves its head and jaw, rather than staying rigidly fixed relative to the shank.
• Softer, more forgiving feel: Because the mouthpiece isn't locked to the shank, some riders find it gives a gentler, more accommodating contact than a fixed-cheek Pelham, similar in spirit to the difference between a loose-ring and a fixed-ring snaffle.
• A source of debate among riders and trainers: There's genuine disagreement in the horse world about how a sliding cheek changes the bit's action. Some riders consider it a relatively mild variation that many horses go happily in. Others argue that if the cheek truly slides, the bit stops behaving like a classic Pelham (lever rotating around a fixed point) and starts behaving more like a gag — since the mouthpiece can ride up the shank toward the corners of the mouth and poll under rein pressure, which is a notably more severe action than standard Pelham leverage. Because of this, opinions vary on how a sliding cheek Pelham should be classified and used.
• Curb and snaffle action still present: Regardless of the slide, the fundamental Pelham mechanics remain — the snaffle rein gives direct pressure on the bars and mouth, while the curb rein engages leverage, poll pressure, and curb chain contact.

What it's good for

• Riders wanting a softer-feeling Pelham: For those who find a fixed-cheek Pelham too rigid or want a slightly more forgiving mouthpiece action, the sliding design is sometimes chosen as a gentler alternative.
• Horses that seem uncomfortable or resistant in a fixed-cheek Pelham: Some riders trial a sliding cheek version if a horse isn't settling well in a standard Pelham, to see if the added mouthpiece freedom improves acceptance.
• As with any Pelham: suited to horses that need more control than a snaffle offers — strong horses, those that get heavy in the hand, or those needing extra steadying — while wanting the practicality of one bit instead of a full double bridle.

A note on caution

• Given the mixed opinions on how the slide changes the bit's severity, it's worth discussing the specific bit's design with a knowledgeable fitter or trainer before using one, particularly if switching from a fixed-cheek Pelham — the action may feel notably different, and in some cases stronger, than expected.
• As with any Pelham, correct curb chain fit (roughly 2 fingers' clearance) is essential, and it's best used by riders experienced with Pelham-style leverage bits.

Competition legality

As with standard Pelhams, the Sliding Pelham is not FEI dressage-legal, but may be permitted in disciplines like showing, hunting, and eventing where Pelhams are already accepted — though riders should always check current rules for the specific variant, since sliding-cheek designs can sometimes fall into stricter scrutiny given their closer resemblance to gag action.

Summary

The Sliding Pelham offers the same core snaffle-and-curb combination as a standard Pelham, but with a mouthpiece that can move along the shank rather than staying fixed — seen by some as a softer, more accommodating variation, and by others as functionally closer to a gag due to the added slide, making it a bit worth understanding carefully (and fitting thoughtfully) before use.

Design

• The Hartwell is a Pelham, meaning it has the dual snaffle-and-curb structure — an upper ring near the mouthpiece for a snaffle rein, and a lower ring at the end of the shank for a curb rein, used with a curb chain.
• Its two defining features are a slide cheek and a standard/low port mouthpiece:
• The slide cheek allows the mouthpiece to move slightly up and down along the cheekpiece ends, rather than being rigidly fixed in one position — giving the bit some "play" and self-adjustment in the mouth.
• The port is a solid bar mouthpiece (non-jointed) with a raised center section, offering some tongue relief, and lying directly on the bars of the mouth — very similar in feel to a genuine Weymouth curb mouthpiece.
• Made of plain stainless steel, durable, tasteless, and non-rusting.

Function

• Designed to mimic a Weymouth's action: Because the port sits on the bars much like a true curb mouthpiece, and the sliding cheek allows a small amount of mouthpiece movement, the Hartwell is specifically built to give a Pelham that feels and acts more like a genuine double-bridle curb than a typical mullen or jointed Pelham does — while still retaining the Pelham's practical single-bit, snaffle-plus-curb structure.
• Sliding cheek gives some self-adjustment: The slight up-and-down movement at the cheek can allow the mouthpiece to settle more naturally in the mouth as the horse moves, rather than staying perfectly fixed the way a standard Pelham shank does.
• Combined snaffle and curb action, same as any Pelham: The snaffle rein applies direct pressure at the mouthpiece, while the curb rein engages the shank, creating leverage that applies pressure to the poll, mouth, and curb chain under the chin.
• Some risk of confused signals: Because the Pelham shank is of moderate length, both the snaffle and curb reins can end up operating somewhat simultaneously rather than fully independently — this can occasionally cause a horse to lift its head unnaturally or hollow through the neck if the rider isn't managing the two reins with real precision.

What it's good for

• Riders wanting a Pelham that feels closer to a true curb/Weymouth: Useful for horses being introduced to double-bridle-style curb pressure, or for riders who want the practicality of a single Pelham bit but a mouthpiece action that closely mirrors genuine curb contact.
• Horses that respond well to a mullen/port-style mouthpiece: Since the mouthpiece is solid rather than jointed, this suits horses that prefer the even, non-folding pressure of a mullen-style bar with some added tongue relief from the port.
• As a stepping stone toward a double bridle: Similar in spirit to how a standard Pelham is sometimes used, the Hartwell's curb-like feel can help familiarize a horse with genuine curb contact before progressing further.

A note on use

• As with any Pelham, this should be used with two reins or a delta rein/converter, and requires a properly fitted curb chain.
• Given the potential for the snaffle and curb reins to act simultaneously, this bit rewards precise, independent rein handling — best suited to experienced riders.
• Like other Pelhams, it's not FEI dressage-legal, but is generally permitted in disciplines like showing, hunting, and eventing where Pelhams are accepted.

Summary

The Hartwell (sometimes called Hartell) is a Pelham bit built to closely emulate a Weymouth curb's mouthpiece action, combining a solid, ported mullen-style mouthpiece with a sliding cheek for some self-adjustment — offering a Pelham experience that feels notably closer to genuine curb contact than a standard jointed or fixed-mullen Pelham, making it a useful choice for horses being introduced to curb-style pressure or riders wanting that particular feel in a single-bit package.