Prichmon:
BMP no longer exists, the drums Staton sells are 3/8"-24 thread, as are most
78mm to be found on Ebay. Staton's appear to be of higher quality, but there
are others less costly. Monster Scooter Parts had the same bells as Staton for
$5 less, but as of this post they are out of stock....hmm, maybe Staton bot'em
all?
I'm pretty sure 3/8"- 24 is the same as 8mm x 1.25 having checked on my
inch/mm ruler.