Brompton 2 to 3 Speed Sprocket Cog Thumb Shifter Kit (MiniMODs x Sturmey Archer)

(a.) Rear Cogs Set with 3 cogs (MiniMODs) 3 sprockets (12-15-17) or (12-14-17) Spacer and C clip Custom made 9 spline Shmano spec, compatible with Stock Brompton 2 speed hub and most third party external cog wheel mods (e.g. MiniMODs, Orz ... ) Not compatible with Sturmey Archer SRF-5 (W) 5 speed hub, but compatible with SRF-5(N) 10 (5x2) speed hub, so 5x3 is possible ... see photo below. Note: The black spacer should be put in between 17t and 15t (or 14t), 12t has built in extrusion rim underneath, so no need to use spacer. (b.) 3 speed thumb shifter (Sturmey Archer) (c.) Shifting cable terminal Barrel Nut (MiniMODs) Titanium Barrel nut shifting cable terminal fixed.