Originally Posted by
clubman
The pics not quite clear to me. If it has a circlip, then two small screwdivers can be used to prise the retaining clip out of the slot and the cog slips off. A threaded driver/cog is fussier. You can dismantle the assembly, clamp the driver in a bench vise, then use heat and chain whip.
OP, maybe a 50's hub without the threaded driver is a better option if you want to swap cogs?
Unfortunately, there is no circlip and it is definitely a threaded driver. I'll post a better picture today. I was hoping against a hub disassembly.
The appeal of this hub is it is 36H instead of the more ordinary 40H. However, I do have 40H Sun CR18 rims I can also supply.