Identifying old bottom bracket and correct tool
I have a bike that's a mish-mash of parts most of which are from the early eighties. The bottom bracket on the non-drive side has a lock ring with six notches. What tool can I use to remove this? It needs to be rebuilt. On the lock ring it says "Nikyo Made in Japan 1.37 x 24T". I'm assuming that the 1.37 x 24T is a diameter and tpi from what I can gather. Has anyone heard of Nikyo? Would the Hozan C-205 unlock this?