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All Bach Style rims were digitized from a number of Bach mouthpieces from the Mt. Vernon era.
The results were averaged in order to give an accurate representation of each rim size from that era.
 

A common sense approach to rim sizes.

Bach Size 1      Bach Size 1 1/4      Bach Size 1 1/2      Bach Size 3      Bach Size 5      Bach Size 7      Bach Size 10 1/2      Bach Size 12

Bach Rim Size #1
(Listed in order of popularity)
1 FVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 1, Inner Diameter = .671 (17.04 mm)
A great mouthpiece for classical players looking for an easier to play mouthpiece while retaining a resonant sound.
Our FVR cup is similar in volume to a traditional "C" cup but has an acoustically advantageous shape.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
1 DVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 1, Inner Diameter = .671 (17.04 mm)
A great mouthpiece for classical players used to Bach style "C" cups.
Our DVR cup has more volume than a traditional "C" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
1 CVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 1, Inner Diameter = .671 (17.04 mm)
A great mouthpiece for classical players used to large cups.
Our CVR cup has more volume than a traditional "B" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
Back to top

You may note that some Bach rims have the same measured diameter even though they are different sizes.
This is because they have different shapes which will affect how they feel to you, the player.
More Rim Size Information.

Bach Rim Size #1 1/4
(Listed in order of popularity)
1.25 FVR Flex Trumpet Mouthpiece (Most Popular in this Rim Size)

Mt. Vernon Bach 1 ¼, Inner Diameter = .671 (17.04 mm)
A great mouthpiece for classical players looking for an easier to play mouthpiece while retaining a resonant sound.
Our FVR cup is similar in volume to a traditional "C" cup but has an acoustically advantageous shape.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
1.25 DVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 1 ¼, Inner Diameter = .671 (17.04 mm)
A great mouthpiece for classical players used to Bach style "C" cups.
Our DVR cup has more volume than a traditional "C" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
1.25 CVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 1 ¼, Inner Diameter = .671 (17.04 mm)
A great mouthpiece for classical players used to large cups.
Our CVR cup has more volume than a traditional "B" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
Back to top

You may note that some Bach rims have the same measured diameter even though they are different sizes.
This is because they have different shapes which will affect how they feel to you, the player.
More Rim Size Information.

Bach Rim Size #1 1/2
(Listed in order of popularity)
1.5 FVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 1 ½ , Inner Diameter = .671 (17.04 mm)
A great mouthpiece for classical players looking for an easier to play mouthpiece while retaining a resonant sound.
Our FVR cup is similar in volume to a traditional "C" cup but has an acoustically advantageous shape.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
1.5 DVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 1 ½ , Inner Diameter = .671 (17.04 mm)
A great mouthpiece for classical players used to Bach style "C" cups.
Our DVR cup has more volume than a traditional "C" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
1.5 CVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 1 ½ , Inner Diameter = .671 (17.04 mm)
A great mouthpiece for classical players used to large cups.
Our CVR cup has more volume than a traditional "B" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
Back to top

You may note that some Bach rims have the same measured diameter even though they are different sizes.
This is because they have different shapes which will affect how they feel to you, the player.
More Rim Size Information.

Bach Rim Size #3

Classical Applications
(Listed in order of popularity)
3 DVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 3, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical players used to Bach style "C" cups.
Our DVR cup has more volume than a traditional "C" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
3 GVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 3, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical/pit players looking for an easier to play mouthpiece while retaining a resonant sound.
Our GVR cup is similar in shape to our FVR cup but has less internal volume.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
3 FVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 3, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical players looking for an easier to play mouthpiece while retaining a resonant sound.
Our FVR cup is similar in volume to a traditional "C" cup but has an acoustically advantageous shape.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
3 CVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 3, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical players used to large cups.
Our CVR cup has more volume than a traditional "B" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers

Commercial Applications
(Listed in order of popularity)
3 SVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 3, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for commercial players looking for an efficient mouthpiece with a huge, resonant sound.
Our SVR cup works great for lead players that play extensively in the upper register.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
3 DVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 3, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical players used to Bach style "C" cups.
Our DVR cup has more volume than a traditional "C" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
3 SVVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 3, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for commercial players looking for an efficient mouthpiece with a huge, resonant sound.
Our SVVR cup works great for lead players that play extensively in the upper register.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
3 ESVR+ Flex Trumpet Mouthpiece

Mt. Vernon Bach 3, Inner Diameter = .655" (16.64 mm)
A great choice for lead players who need a little extra chop room just under the rim. It was originally designed for Javier Gonzalez, Los Angeles Freelance.
Our ESVR+ cup works great for lead players that occasionally experience lip swelling.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
3 GVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 3, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for commercial/pit players looking for an exellent crossover mouthpiece that blends well in section, pit, and light classical work. It is an easy to play and retains a resonant sound.
Our GVR cup is similar in shape to our FVR cup but has less internal volume.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
Back to top

You may note that some Bach rims have the same measured diameter even though they are different sizes.
This is because they have different shapes which will affect how they feel to you, the player.
More Rim Size Information.

Bach Rim Size #5
(Listed in order of popularity)
5 DVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 5, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical players used to Bach style "C" cups.
Our DVR cup has more volume than a traditional "C" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
5 FVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 5, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical players looking for an easier to play mouthpiece while retaining a resonant sound.
Our FVR cup is similar in volume to a traditional "C" cup but has an acoustically advantageous shape.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
5 GVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 5, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for commercial players looking for an easier to play mouthpiece while
retaining a big, resonant sound.
Our GVR cup is similar in volume to a traditional "C" cup but has an acoustically advantageous shape.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
5 CVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 5, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical players used to large cups.
Our CVR cup has more volume than a traditional "B" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
Back to top

You may note that some Bach rims have the same measured diameter even though they are different sizes.
This is because they have different shapes which will affect how they feel to you, the player.
More Rim Size Information.

Bach Rim Size #7
(Listed in order of popularity)
7 DVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 7, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical players used to Bach style "C" cups.
Our DVR cup has more volume than a traditional "C" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
7 FVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 7, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical players looking for an easier to play mouthpiece while retaining a resonant sound.
Our FVR cup is similar in volume to a traditional "C" cup but has an acoustically advantageous shape.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
7 GVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 7, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for commercial players looking for an easier to play mouthpiece while
retaining a big, resonant sound.
Our GVR cup is smaller in volume than a traditional "C" cup and has an acoustically advantageous shape.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
7 CVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 7, Inner Diameter = .655" (16.64 mm)
A great mouthpiece for classical players used to large cups.
Our CVR cup has more volume than a traditional "B" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
Back to top

You may note that some Bach rims have the same measured diameter even though they are different sizes.
This is because they have different shapes which will affect how they feel to you, the player.
More Rim Size Information.

Bach Rim Size #10 1/2
(Listed in order of popularity)
10.5 FVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 10 ½, Inner Diameter = .624" (15.85 mm)
A great mouthpiece for classical players looking for an easier to play mouthpiece while retaining a resonant sound.
Our FVR cup is similar in volume to a traditional "C" cup but has an acoustically advantageous shape.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
10.5 DVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 10 ½, Inner Diameter = .624" (15.85 mm)
A great mouthpiece for classical players used to Bach style "C" cups.
Our DVR cup has more volume than a traditional "C" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
10.5 CVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 10 ½, Inner Diameter = .624" (15.85 mm)
A great mouthpiece for classical players used to large cups.
Our CVR cup has more volume than a traditional "B" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
Back to top

You may note that some Bach rims have the same measured diameter even though they are different sizes.
This is because they have different shapes which will affect how they feel to you, the player.
More Rim Size Information.

Bach Rim Size #12
(Listed in order of popularity)
12 FVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 12, Inner Diameter = .608" (15.44 mm)
A great mouthpiece for classical players looking for an easier to play mouthpiece while retaining a resonant sound.
Our FVR cup is similar in volume to a traditional "C" cup but has an acoustically advantageous shape.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
12 DVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 12, Inner Diameter = .608" (15.44 mm)
A great mouthpiece for classical players used to Bach style "C" cups.
Our DVR cup has more volume than a traditional "C" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
12 GVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 12, Inner Diameter = .608" (15.44 mm)
A great mouthpiece for lead players who desire more room in the cup than a traditional lead style mouthpiece.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
12 CVR Flex Trumpet Mouthpiece

Mt. Vernon Bach 12, Inner Diameter = .608" (15.44 mm)
A great mouthpiece for classical players used to large cups.
Our CVR cup has more volume than a traditional "B" cup yet is considerably easier to play.

$245.00 - Silver Plate, $345.00 - Gold Plate
Includes three Flex Couplers
Back to top