Brompton inner tube 16 x 1 3/8 inch / 37-349 - schraeder valve

Note: From 2012 the Marathon tyre supplie by Brompton is no longer 16 x 1 3/8 inches or 37-349, but is 16 x 1.35 inches or 35-349 (slightly narrower). For the narrower tyres you should use the AV4 (which is suitable for both versions) or the QTUBXL (please see the related stuff tab)

Supplied as shown - with no box - as supplied from Brompton.

Weight: 105g (looking to save 20g per inner tube? - then look here) 

Note: These Brompton technical videos may be useful in your tyre replacement task:

Brompton rear wheel removal and replacement video.
Brompton front wheel removal and replacement video.
Brompton tyre removal and replacement video.

Brompton code: QTUB

This inner tube fits ETRTO tyre size as shown below:
37-349 - 16 x 1 3/8 inch

In 2010 Brompton produced 28000 bicycles (75% for the export Market) and are now the UKs largest bicycle manufacturer.

At the heart of the company is making a bloody good bike - says MD Will Butler-Adams. We don't need to say more.

The Brompton timeline

2012
Brompton launches the H type with a higher ride position and Mini Ortlieb bags 

2010
Brompton receives the Queens award for international trade and Queens award for innovation

2009
Andrew Ritchie receives the Prince Phillip designers prize
Brompton Wide Range Hub (BWR) introduced - with a 302% range
Satin finish introduced across the whole range

2007
Rear frame clip introduced

2005
S-type (sports / straight) and P Type handlebars introduced
Superlight upgrade launched - including alloy headset, titanium forks, rear frame, pedal bolt and mudguard stays.

2004 
Long wheelbase and improved hinge joints introduced 

2002
Brompton 2 sprocket derailleur system introduced

2000
Mark 3 models introduced - better componentry all round

1995
Brompton receives Queens award for export

1987
Brompton goes into full time production

1981
First 30 Brompton bikes produced to order

1976
Brompton Bicycle is registered as a limited company

1975
Andrew Ritchie begins designing a folding bike in his flat, overlooking the Brompton Oratory