With all this talk of Rhein wheels and big brakes, I am compelled to
throw in my experience. After installing the big brake kit from Van
Cafe, I noticed that the clearance between caliper and wheel was very
small, but seemingly adequate. When rotating the wheel while on jack
stands, there was no contact. But, as I was backing out of the
driveway for a test drive, I heard an intermittent grinding sound
which turned out to be a caliper hitting the stick-on wheel weight on
the inside of the rim. I had to remove those weights. I have not
noticed any vibration with the weight gone and felt OK to forego
rebalancing. Point is, there is not enough clearance to put weights
there and you may want to mention that to your tire guys if you are
having the tires rebalanced or getting new tires.

Keith O.
90 Westy Syncro "VikingWagen"