Francois Louis - Sphere Chamber - Signature - Soprano Mouthpiece

Francois Louis - Sphere Chamber - Signature - Soprano Mouthpiece

Marsoni

M251S

$205.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Francois Louis - Sphere Chamber - Signature - Soprano MouthpieceFrancois Louis Sphere Signature S175 is a 1. 75 mm tip opening (69 00) equivalent to the traditional 7 opening. Combined with a medium short facing length and a progressive facing curve. This is the universal mouthpiece: very stable, centered pitch, small enough to be playable by amateurs and students, big enough to put some air and be playable by professionals. Very precise. Extremely responsive with a lot of projection. Entirely hand finished by FL

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This seems to work very well. I will say that it seems to be pretty important to move the wheel around as soon as you can to distribute the product within the tire. I was held up for a few minutes and the Liqui tube seemed to start to set up in one spot and made the tire out of balance so I had to work quick to get it to distribute to the other parts of the tire. It seems to have worked though and so far the tires are holding air very well. I will be interested to see if it lasts for a long time but so far so good.

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Reviewed in the United States on May 18, 2026