Originally Posted by switch
Here's a crude drawing. When installing this I followed the XR caliper mount suggestions. Note that the small hole must be drilled out. I didn't use the supplied self-tapping screw; instead I used an M5 or M4 bolt + washer + (some half-washer designed to prevent the screw from accidentally un-screwing - don't know the English name for it).
Left piece is the fork leg, right piece is the caliper mount.
What did you use for the caliper bracket and brake disc 320mm?