Two and six speed Brompton bikes use a proprietary Brompton derailleur system. Here you can find all the controls, for example shifters / triggers, gear cables, derailleur mechanism for your bike.
Brompton derailleur gear cable only - excluding dog leg section. For P type Brompton with long wheel base.
Brompton derailleur gear cable only, short wheel base, excluding dog leg section For classic Brompton M-type handlebars
Brompton derailleur gear cable - M Type - for integrated gear shifter For 2017 onwards model Bromptons
Brompton derailleur gear cable - S Type - for integrated gear shifter For 2017 onwards model Bromptons
Brompton derailleur gear cable - H Type - for integrated gear shifter For 2017 onwards model Bromptons
Brompton derailleur gear cable (outer and inner) - P Type - for integrated gear shifter For 2017 onwards model Bromptons
This is the cable required for the Brompton retro-fit to upgrade your 3 speed hub to have an additional 2 derailleur gears - giving 6 in total. P-type handlebar
Brompton derailleur gear trigger cap only. This is just the top part of the assembly.
Replacement Brompton derailleur gear trigger threaded nipple
Brompton derailleur gear trigger housing assembly.
Replacement Brompton derailleur chain pusher wing plate set (QCHPUWPL/SP) Discontinued - click here for replacement
Brompton Derailleur set, for converting 1 speed to 2 speed, excludes cables (QDRRETSET1->2)