Union Jack 2-7 Speed Thumb Shifter for Brompton Bicycle

UnionJack Brompton external 7-speed right shifter, single lever operation.
Press once to shift up to a larger sprocket, quick release to shift down to a smaller sprocket.
Smooth and easy gear changes for 7-speed conversion, compatible with 11-speed cassettes, set with 2.0 mm spacing.
Total weight: 87 g.
Can be directly mounted on the original Brompton brake lever with an adapter.