Vincent Bach's trombone mouthpieces set the standard for excellence and playability over a century ago.

Bach large shank trombone mouthpieces continue that standard today through constant innovation and dedication to the manufacture of brass instrument mouthpieces. 

Choosing the right mouthpiece is personal—especially when it comes to your embouchure. That’s why Bach designs an extensive range of large shank trombone mouthpieces, offering thousands of combinations of rims, cups, and backbores. Whether you're a beginner refining your tone or a seasoned pro looking for precision, there's a Bach mouthpiece built for your needs.

You can play with confidence - Bach's large shank trombone brass mouthpieces are lead-free. Check the Bach large shank trombone mouthpiece chart below to see our most popular sizes.

Model 3415G
Bach 5G Large Shank Trombone Mouthpiece
Same rim shape and diameter as No.5 small shank tenor trombone. Similar playing characteristics to No. 4G with a slightly smaller cup diameter.
• Cup Depth: Deep
• Cup Diameter: 25.50mm
• Rim: Medium-wide, semi-flat

Model 3416HAL
Bach 6.5AL Large Shank Trombone Mouthpiece
The same cup, throat, and backbore as No.612AL small shank tenor trombone but with bass shank. It requires a well-developed embouchure.
• Cup Depth: Medium-deep
• Cup Diameter: 25.40mm
• Rim: medium-wide, well-rounded