I doubt that there's any such thing as "11 lbs offset" and they are probably "alloy" and not "mags" and they are "wheels" and not "rims"
Very very few wheels are actually magnesium, but are rather aluminum alloy
"Rims" are these:
Real magnesium 'natural' mag wheels were dark grey, but could be finished in other colors. Minilite was one old famous brand, and in this part of the world, Halibrand.
Maybe lbs for mm typo???
Then it would have to be pos. or neg. mm. but 11 would fit the scale. :glasses7: Offset is stated in millimeters so that it can be differentiated from back and front spacing. To convert inches into millimeters multiply by 25.4 (1"x25.4 = 25.4mm).