not sure about the 5 speed but from the brompton website it states the folowing:-
single speed lightest (obviously) and then +0.19kg for the 2 speed, +0.74 3 speed and +0.92 for the 6 speed
@pryally started
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not sure about the 5 speed but from the brompton website it states the folowing:-
single speed lightest (obviously) and then +0.19kg for the 2 speed, +0.74 3 speed and +0.92 for the 6 speed