Formula Hub, Surly Cog, Surly Lockring
What side of the lockring are you using?
Per Surly you should only use the lip side of the lockring if the cog overhangs 1.5mm.
I installed mine with the lip towards the cog and all seems fine, but I have yet to be able to ride hard as I'm still recovering from injury...
It seems to engage more threads with the lip facing in, but I'm not sure the cog over hung a whole 1.5mm
Just wanted to see if anyone else was using the same combo and which way they placed their lockring.