So I have a frame that is spaced to 120mm...would I be damaging my frame if I used my MKS chain tugs with the washer on the "inside" of the trackend? The washer part of the tug is roughly 1mm thick I suppose so really I guess I am "stretching" my frame to 122mm. (the net effect is that I'm sticking a 122mm spaced hub into a 120mm frame) Is this bad? I'm kinda undecided if the 2mm stretch would do anything. I dont want to run them on the outside of the dropouts though because then the tracknuts aren't "secured" and the serrated edge isn't touching anything, just kinda floating since the washer is smaller than the diameter of the tracknut.