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.
Derailleur chain tensioner idler (jockey wheel) spindle, single unit
Derailleur chain tensioner idler (jockey wheel) nuts/bolts, single set for Brompton
Replacement Brompton derailleur gear cable set for H-type handlebar long wheelbase. Discontinued in 2017 - see below for replacement details
This is the cable required for the Brompton retro-fit kit to upgrade your 3 speed hub to have an additional 2 derailleur gears - giving 6 in total.
Replacement Brompton derailleur gear cable set for P-type handlebar long wheelbase. Discontinued in 2017 - see below for replacement details
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.
This is the cable required with the Brompton retro-fit to upgrade your 3 speed hub to have an additional 2 derailleur gears - giving 6 in total.
Brompton derailleur gear trigger - lever only.
Replacement Brompton derailleur gear cable set for S-type (straight) handlebars, long wheelbase. Discontinued - please see below for replacement details
Replacement Brompton derailleur gear cable set for M-type handlebar long wheelbase. Discontinued in 2017 - see below for replacement details
Replacement Brompton derailleur gear cable set for M-type handlebar with short wheel base (2004 and earlier). Discontinued in 2017 - see below for replacement details
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. H-type handlebars (introduced in 2012) only