Thinking about getting the Anti Hero Beach Bummer but have no idea what trucks to run on it
Ace 77?
169?
The 169s with wider wheels work well on any of those shaped boards.
Ace 66 classics or AF1 77s also work well on any wider 9.5+ boards like that too.
It does taper a fair bit so unless you don't mind some overhang in the back truck, I wouldn't go as wide as Indy 215 and some might not even go as wide as AF1 77s, but that is personal preference.
I haven't seen one to know the measurement over the back truck, but I think it looks like about 9.3 or so.
Edit:
This is the Beach Bum 9.5 shape with info here:
https://www.conflictskates.co.uk/anti-hero-shaped-eagle---the-beach-bum-skateboard-deck-95-x-305-142wb-yellow-pool-35609-p.aspI would just add about .5" to those measurements as it seems to be about the same overall, just larger.
9.5" x 30.5"
5.75" nose
6.75" tail
14.2" WB (measured from inside to inside holes)
Width over front truck: 9.25"
Width over rear truck: 8.875"