Detail 01
Milled hard rubber
The mouthpiece is machined from hard rubber rather than formed in a mold.

Independent shopping perspective
Reserve X0 is a Bb clarinet mouthpiece with a 1.00 mm designation. Its hard-rubber body is milled instead of molded, with machining held to strict tolerances for consistent production. The design brings together modern precision manufacturing and an approach informed by prized mouthpieces from the 1920s. It is a focused choice for clarinetists selecting a Reserve-series mouthpiece by its X0 marking and 1.00 mm designation.

Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
The mouthpiece is machined from hard rubber rather than formed in a mold.
Detail 02
Production is centered on consistency from one Reserve mouthpiece to another.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
No. It is milled from hard rubber.
It is a Bb clarinet mouthpiece.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.