Brompton BLACK 2-speed derailleur gear shifter with integrated brake lever

Brompton 2 speed derailleur gear shifter and integrated brake lever - BLACK

2 speed shifters are used on 2 speed and 6 speed bikes and control the rear derailleur gear mechanism. On 6 speed bikes the 2 speed derailleur works in conjunction with a 3 speed hup gear system, giving 6 gears in total.

These shifters were introduced on 2017 model bikes late in 2016

The integrated shifter is not compatible with older brake levers (they have no mounting holes)

The Brompton 2-speed shifter uses a self-returning lever to change between the two gears. 

Pushing it down with your thumb will shift into an easier gear and clicking the lever upwards with the back of the thumb will shift into a harder gear. 

It is possible to change gear while pedalling or stationary, though the gear will not engage until the pedals are moving forward (i.e. you start pedalling). 

The indicator window shows you which gear is selected. (+ for higher gear and - for lower gear)

Note: This shifter is not compatible with the old (pre-2017) high rise M-type and H-type handlebars 
(It is possible to fit them if you use shorter - 90 or 100mm - grips)

Brompton 2020 Q part code: Q100658
Brompton Q part code: QGSHIFTL2A-BK
Brompton part number: 9002993