Brompton 4 Spd Gear Shifter
 
Genuine replacement 4-speed shifter and integrated brake lever for P Line bikes.
 
The gear shifter uses a self-returning mechanism to change between the four gears, pushing down changes to an easier gear, and up to a harder gear. You should pedal while changing gear.
 
Note - this shifter is not compatible with pre-2017 M/H handle bars and is only compatible with the 4-gear mechanism.
 
The pack consists of:The Advance 4-speed shifter and brake lever