Notch Thickness....

make sure its 1/4" wall d.o.m then it just depends what size u wanna use and how beefy u want it=) I'd just buy a sd 4 link very BEEFY=)

d.o.m?

Drawn over mandrel - is a cold drawn electric resistance welded tube with all the flash removed. DOM tube is produced to more exact OD and ID tolerances and better finishes without a seam.

kool shit,... i noe SD have beefy 4-links, but do i really need to go THAT beefy??

you dont need them that beefy. 1/4wall is overkill if you're just running them for bars. 1/8th or 3/16th will work just fine for link bars. just dont mount bags on them without gussets

i dont understand why 1/4inch walls came out to be the standard. you could bag a semi with a suicidedoors 4link, especially those 2inch diameter round 4links