I havent tried , But IM curious if anyone had had a Shimano Single speed BMX hub
and is there any comparison between the Pre Hyperglide spline.. that are all the same width..
as Opposed to the current ones which key on in common by having a wider and narrow spline
cut, so all the shift features line up..
S3X Threads the tips of their splines , making a screw on Freewheel a practicality ,
if you get tired of your feet being pushed around going down hills..