Brompton X2+1 Unibody Cog Set Thumb Shifter Barrel nut Kit (MiniMODs) 2S->3S or 6S->9S

Description : (a.) X2+1 Unibody Cog (MiniMODs) 2 cogs (11-16T) in One Unit. Precision CNC machined SCM440H heat treated steel. ED-Electrophoresis deposition surface processed black Most efficient drive output, crispy clear shifting reaction Plug and play, very easy to install and finetune. Most Stock components compatible Prefer 11 Spped and up Chain. Leading teeth on-shift design for ultra smoothness. Circlip type for maximun compatiblity (1.2 mm custom snap ring included). For 9 spline Shmano spec, compatible with Stock Brompton 2 speed hub (BWR 3x2 6 speed hub) and most third party external cog wheel mods (e.g. MiniMODs, Orz, Hubsmith, Joseph Kuosac, etc. ) Not compatible with Sturmey Archer SRF-5 (W) 5 speed hub or Brompton BSR 3 speed, but compatible with SRF-5(N) 10 (5x2) speed hub, so 5x3 is possible (b.) 3 speed indexed thumb shifter (c.) Shifting cable terminal Barrel Nut (MiniMODs) Titanium Barrel nut shifting cable terminal fixed. (d.) Extra Cog for 4 speed or beyond application (SunRace) Extra cog for even more speed expansion project as shown in the photo (require custom free hub body which will be release soon). Heat treated steel. ED-Electrophoresis deposition surface processed black Leading teeth chain on design, precise chain reaction Shimano 9 splines free hub body compatible. For 11 speed and up chain.