Re:
My stem is FSA SLK -20 drop and it's 50mm. From memory it's a 28mm stack.
Is it for the old Sinister? I only ask because i don't think it'll work with the 49mm headtube, because of the drop. It clears a 44mm headtube fine.
It's almost new. I wanted a short stem, but it turned out to be too short for me.
After £30 posted if it's of use.
Can do a pic tomorrow.
Rich