http://www.prolineracing.com/t-HowTo...Guide.aspx#lpr
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You can judge how deep the hex is by looking at the photos of the backs of the rims. Normal maxx rims have no offset, so the hex is quite deep into the rim, almost inline with the inside of the front face if you will, where as the offset stuff sticks out like a volcano (you know what I mean). Same applies to some of the 40 series- just look at that link and you will see which rims are ofset and which arent.
You may stop worshipping me now...