Myler MB 33 Curb Bit - 5" Sweet Iron Ported Barrel Level 3, 7" Flat Shank

Unlock the ultimate level of softness and communication with your finished horse by providing the total tongue relief they crave. The Myler MB 33 Curb Bit transforms subtle cues into effortless performance, eliminating resistance for a truly harmonious ride.

Engineered for the advanced equine athlete, this bit features a Sweet Iron mouthpiece that naturally oxidizes to encourage salivation and a relaxed jaw. The Level 3 design is Myler’s most generous mouthpiece, utilizing a 1 ½" Ported Barrel to remove direct tongue pressure, allowing your horse to focus entirely on your seat and leg aids rather than mouth discomfort.

Key Features & Specifications:

• Level 3 Mouthpiece: Myler’s mildest design for tongue pressure, featuring a 1 ½" wide, low ported barrel that allows the tongue to pass completely under the bit.
• Independent Side Movement (ISM): Built with a central barrel bushing that allows each side of the bit to move independently, perfect for picking up a shoulder or giving precise lateral cues.
• Sweet Iron with Copper Inlay: The mouthpiece naturally oxidizes to create a sweet taste, promoting a moist, soft mouth and immediate bit acceptance.
• 7" Flat Shank: Offers refined, mild-to-moderate leverage that distributes pressure across the bars, lips, chin groove, and poll for nuanced communication.
• Precision 5" Sizing: Engineered to measure 5 1/8" to accommodate the "1/8-inch rule," ensuring the curved mouthpiece sits correctly with a small amount of bit visible on each side.
• Advanced Tongue Relief: Specifically designed for horses with low palates or those that "fuss" under traditional tongue pressure, encouraging a quiet, willing attitude.

Frequently Asked Questions:

Q: How do I know if my horse is ready for a Level 3 Myler bit?
A: The MB 33 is ideal for "finished" horses that are consistent in their work and respond well to seat and leg aids. If your horse is advanced but shows signs of resistance to tongue pressure—such as head tossing or gaping—this Level 3 mouthpiece provides the freedom they need to stay relaxed and responsive.

Q: How does the Myler "1/8-inch rule" affect which size I should buy?
A: Myler bits are intentionally manufactured 1/8" wider than their stated size (e.g., this 5" bit measures 5 1/8"). This is designed so that 1/8" to 1/4" of the bit is visible on each side of the lips, allowing the curved mouthpiece to protect the bars. If your horse measures exactly 5", this 5" bit is the correct choice.

Q: What disciplines is the MB 33 Curb Bit best suited for?
A: While highly popular in Western performance and trail riding due to its refined lateral control, the MB 33 mouthpiece is a favorite across all disciplines for any advanced horse that requires maximum tongue relief and independent side movement.

Item Number/SKU: 89-11335