Thanks for the feedback on the X brake assembly on X wheels, that seems to be the cleanest solution. Unfortunately, the free X brake assembly is not an available and I back to square one. Strange EBC changed the brake relocation bracket design without having the original available. Also strange they use a 320mm and not a 298mm. The way I see it, I have two options moving forward:
Option #1: I design a bracket myself, I'm a ME, and have my machine shop at work fabricate the part. Use the existing brake caliper and just mount it to the adapter when running the SM wheels.
Option #2: Buy a used brake assembly, take it apart and permanently mount it to the EBC bracket I have. Then swap the entire brake assembly when running SM wheels.
Did you guys buy the brake assembly new or used off ebay/craigslist? I'm guessing it takes a while for these to pop up.
In the short term I'll probably mount the R disk on the SM wheels and ride it easy. Any input, comments, or other suggestions are welcome.
Thanks again,
Dan