Curious question, i have just purchased some mks 'fat chain tugs for my bike and i want to mount them on the inside.
Is this is o.k or not?

My rear is is spaced 120, so it will spread the stays about 2mm each.

Oh and it is a ally frame.

cheers, beers and no gears.

I think its okay. I've been runnning it like that for about 5 months on one of my bikes with no problems. my frame is steel, but 2mm isnt very much.