The function of the rim contour of mouthpieces is to support the vibration of the lips as much as possible. Consequently it shall neither be too wide (blocking) nor too narrow (cutting). A good rim should enable the musician to play over a long period of time. Extreme forms of shapes should not be taken into consideration (very steep curvature of the rim down to the outside or inside, too wide, too narrow).

To me it is personally very important to provide the musician with a perfectly fitting rim.

Who else if not the musician could tell us best what the ideal rim shape is?

Therefore we are permanently extending our range of rims or create customized rims on demand.

Some of our rims are available on one-piece Standard trumpet mouthpieces.

Our standard rims are described in the table below.

We endeavor in assisting you to find your favourite mouthpiece. In achieving that we designed hundreds of rims and cups in the past years, some of them are meanwhile reliable tools both of esteemed artists and talented brass musicians all over the world. To keep an overview amongst all the models and to understand the model designation take this example:

Rim-labeling: AH2-E

• Rim of Prof. Adolf HOLLER (Wr. Philh. † 2011), Version 2
• E substitutes the value 16,2 mm according the table above

The conclusion is to assemble that rim with cups labeled with [model]-E or greater to omit a step between rim and cup.

Further Information you will receive from the Team Breslmair, the maker of your individual mouthpiece.