I am using a truvativ 4 arm 104bcd chain set, not sure of the exact one, got the chainring mounted on the inner side of the arms. I have put one spacer on the bb to move it out a little more.
I messed about with this for ages as I was getting a bit of tyre rub when the chain was slack. I have now found an elegantly simple solution, I have dished the wheel slightly towards the left hand side.
Works perfectly well and no chain rub. No doubt haters will comment about how the world may now well end, but so far it’s been fine.
Dunno if I mentioned it, but I am running this as a mullet at the moment with a 29+ on the front and a 27.5+ on the back as I am just waiting on a rim. 29+ definitely fits though.