Brompton gear upgrade kit - 6 speed SRAM to 6 speed BWR hub/derailleur

This kit is makes the assumption that your existing cables / triggers / chain are in good condition - if you need to upgrade them, please feel free to contact us.

The rear sprockets supplied with the kit are the same as in the set QRSRPSTACK-BWR6, which is:
13 tooth, 3.1 mm wide
16 tooth, 1.8 mm wide
They have a Shimano spline fitting (as used on the Brompton / Sturmey Archer BWR wheel) 

Wheel nuts are included

A new chain is also supplied (this is a QCCHAIN100DR to fit a 50 tooth front chain ring, if you have 44t then you can either remove 2 links or ask us for a 98 link chain. If you have a 54T chain ring then please ask for a 102 link chain)

A new gear cable anchor is also supplied (as this has a different size thread on the Sturmey Archer compared to the SRAM)

Brompton part number: QRETSET36SR->6BWR

About Brompton :

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 

 

Related tags: Brompton Hub Derralieur Gear