i read somewhere* that the tapers differ marginally in angle
I read that somewhere too. I also read that the across flats dimension was different. Then I grabbed a bunch of JIS and ISO axles out of my parts bin and measured them, and found that there's a lot of BS out there, much of it traceable back to Sheldon Brown, who was wrong on this one occasion.
I read that somewhere too. I also read that the across flats dimension was different. Then I grabbed a bunch of JIS and ISO axles out of my parts bin and measured them, and found that there's a lot of BS out there, much of it traceable back to Sheldon Brown, who was wrong on this one occasion.