Dr Bristol Copper Full Cheek Bit

A Full Cheek bit (also called a "Full Cheek Snaffle") is a fixed-cheek bit design with long, straight bars (cheekpieces) extending both above and below the mouthpiece ring on each side.

Design

• The mouthpiece sits on rings, similar to a standard snaffle, but rigid bars extend upward and downward from these rings, parallel to the horse's face.
• The upper bars typically have small "keepers" or loops through which the bridle's cheekpieces can be attached, holding the bars upright and flat against the face.
• The reins attach either to the main ring itself or sometimes through slots in the cheek bars, depending on the design.
• Unlike a loose-ring snaffle, the mouthpiece cannot slide side-to-side through the horse's mouth because the fixed cheeks prevent it.

Function

• Framed, stable feel: The sidepieces give the bit a "framed" quality in the mouth, helping the horse feel steady and secure in the contact.
• Lateral/turning support: The long cheek bars act as a visual and physical guide. When rein pressure is applied on one side (e.g., in a turn), the opposite cheek bar presses gently against the side of the horse's face, reinforcing the turning aid. This makes it especially useful for steering and bending, and helps keep the horse's shoulders in place through turns.
• Prevents pulling through the mouth: The bars stop the bit from sliding sideways or being pulled through the mouth, which can happen with loose-ring snaffles on horses that evade contact by turning their head sharply or leaning on one rein.
• Protects the mouth corners: The fixed sidepieces prevent the mouthpiece from pinching or rubbing at the corners of the mouth, a common irritation with bits that can slide or rotate more freely.
• Mouthpiece stability: Because the cheeks are fixed, the bit sits more quietly and predictably in the mouth compared to a loose-ring design.
• No poll leverage: Like the Baucher, the Full Cheek has no lower shank/curb chain combination, so it does not create true leverage or added poll pressure — it acts on the same direct, non-leverage principle as any snaffle.

What it's good for

• Green or young horses: The visual/physical cheek support helps teach steering and lateral cues, since the horse gets a clear tactile signal from the cheek bar pressing against its face during a turn. It's considered a great, comfortable starting bit for a youngster.
• Horses that struggle with straightness: The lateral guidance helps riders reinforce direction, useful for horses that tend to drift, bulge through a shoulder, or evade turning aids.
• Horses that root or lean, or try to pull the bit through their mouth: The fixed cheeks resist this kind of evasion better than a loose-ring.
• Horses with sensitive mouth corners: The stability and corner protection make it a comfortable option for horses prone to rubbing or pinching.
• Driving/harness horses: Full cheeks are traditional in driving because they help prevent the bit sliding through the mouth when direct rein contact isn't always available (as with long driving reins), and offer better steering cues without a rider's leg aids.
• Young horses in lunging or early ridden work: Often used with "bit keepers" (small loops connecting the upper cheek to the browband/headstall) specifically to reinforce the "give and take" steering response horses are taught early on.

Competition legality

The Full Cheek is FEI-approved, including for dressage, making it a permitted option at all levels of affiliated competition.

A note on safety

Full cheek bits carry a practical risk: the protruding cheek bars can catch on equipment, fencing, or other objects. For this reason, they're almost always used with bit keepers — small leather loops attaching the upper cheek to the bridle's cheekpiece — to keep the bars stable and reduce the chance of snagging.

Summary

The Full Cheek is valued for its steering/lateral assistance, mouth stability, and comfort, making it a popular, FEI-legal choice for young horses learning directional cues, horses needing extra straightness support, or driving horses — rather than for any leverage or "stronger" stopping power, since mechanically it functions as a direct-pressure snaffle.

This pairs the Dr. Bristol's characteristic angled center plate with a copper mouthpiece, combining a control-focused mouthpiece shape with a metal chosen specifically to encourage salivation and relaxation.

Design

• The core structure is the classic Dr. Bristol double joint: two outer sections plus a flat, rectangular center plate/lozenge, set at an angle rather than lying flat.
• In the copper version, either the entire mouthpiece or (more commonly) just the center Dr. Bristol link itself is made of copper, sometimes combined with a twisted/slow-twist texture on the outer bars for added grip and variable pressure points.
• Some designs angle the copper link at a shallower 45-degree angle rather than the more traditional 90-degree angle, which allows the link to lie flatter against the tongue, distributing pressure a bit more evenly and reducing some of the sharpness associated with a standard Dr. Bristol.

Function

• Salivation and relaxation: Copper is a soft, warm metal with a taste horses generally find pleasant, which encourages salivation and helps keep the mouth soft and supple — the same acceptance-boosting effect copper offers in other mouthpiece styles.
• Sharper tongue pressure under contact: As with any Dr. Bristol, the angled center plate means that when the bit rotates under rein pressure, an edge of the plate presses into the tongue, giving a sharper, more pronounced response than a flat French Link lozenge — useful for building responsiveness and control.
• Variable pressure via twist: If the outer bars have a slow-twist texture, this adds further "grip" and variable pressure points along the bars of the mouth, layering additional control on top of the Dr. Bristol's core action.
• Balancing control with comfort: The combination is often marketed specifically as pairing meaningful control (from the Dr. Bristol shape) with improved comfort and acceptance (from the copper), aiming to offset some of the harshness a plain stainless Dr. Bristol might otherwise carry.

What it's good for

• Strong horses that also need encouragement to relax and accept contact: The Dr. Bristol shape offers genuine extra control for a horse that leans or gets strong, while the copper works to keep the mouth soft, salivating, and more willing to accept that contact rather than bracing against it.
• Horses transitioning to more control that are also tense or dry-mouthed: A useful "control plus comfort" combination for horses that need more brakes than a French Link but might otherwise become tense or resistant in a plain stainless steel Dr. Bristol.
• Full Cheek or D-ring pairings for lateral stability: Frequently built onto a Full Cheek or D-ring cheek specifically to add lateral guidance and prevent the bit sliding through the mouth, complementing the tongue-focused Dr. Bristol action with steering support.
• Riders wanting a "softened" but still effective Dr. Bristol: Particularly with a 45-degree link angle, this can be a good middle ground between a standard (sharper) Dr. Bristol and a milder French Link.

A note on severity

• Even with copper's comfort benefits, the fundamental Dr. Bristol mechanism is unchanged — it remains more severe than a French Link due to its edge-based tongue pressure, and copper does not reduce that core action, only adds a salivation/acceptance benefit alongside it.
• As with any Dr. Bristol, it's generally best suited to experienced riders with quiet, educated hands, and not typically recommended for green horses or novice riders.

Summary

A Double-Jointed Dr. Bristol Copper bit combines the Dr. Bristol's effective, edge-based tongue control with copper's salivation-encouraging, mouth-softening properties — making it a useful choice for strong or leaning horses that also need help staying relaxed and accepting of contact, while still requiring the same careful, educated handling any Dr. Bristol demands.