Collection: Bach Trombone (Baritone/Euphonium) Mouthpieces

About Shank Size/Selection

NOTE: Many Large Shank trombone mouthpieces will also fit Large Shank Euphoniums.

Trombone mouthpieces are made in different sizes (shank sizes) to fit different sized trombones. 

Shank size refers to the diameter and taper of the end of the mouthpiece that fits into the instrument. It determines whether the mouthpiece will properly fit the receiver of your instrument.

If your trombone is a small bore (student tenor trombone, jazz tenor trombone) then you must use a Small Shank mouthpiece. If your trombone is a large bore model (large-bore orchestral tenor, bass trombone) then you must use a Large Shank mouthpiece.

Though some Tenor trombones use a "tenor" sized shank (small), many large-bore Tenors use a large shank ("bass" large shank) mouthpiece. Examples of large-bore tenors that use the large shank size include instruments like the Bach 42B or the Conn 88H ... and of course large shank mouthpieces also fit instruments like the largest Edwards Bass trombones.

Most bass trombones use the same large shank size as large-bore tenor trombones. However, for a bass trombone, the cup and rim are much larger.

If you have any questions please contact us!

The Remington shank or stem is similar to the standard large shank trombone mouthpiece, The difference is the rate of taper. A modern large shank mouthpieces has a Morse taper .050" rise per inch length and the Remington style shanks have a taper similar to the Brown and Sharp taper .04167" rise per inch length.

Remington shanks were used in many vintage Conn large bore trombones starting in Elkhart, (1954-70) to Abilene, TX (1970-86) to Eastlake, OH (1986-92) Conn 8H, 88H, 60H, 62H, 70H-73H from around 1954 until the early 90's. PLEASE NOTE the modern Generation II 8H and 88H trombones use the standard large shank Morse taper mouthpiece offered on our website, not a Remington shank.

Why does it matter?
A standard Morse taper mouthpiece will not seat properly in a Remington receiver, it leaves a gap around the end of the shank which has a bad acoustic effect, this may cause bad slotting and for some notes to not speak as well as they should. A good rule is if it wobbles it's probably the wrong shank.