I have no space left to displace the additional disc. The tacho cable is close the disc with rivets as it is routed outside its guide.
A friend made spacers to use under the caliper bracket making it parallel with the disc. One spacer much easier than 4 std washers i used before. 3 washers 1.5mm thick + 1 thinner = total 5.3mm a little bit too much. 3 washers of 4.5mm was to little.
Spacers are 5.0 mm thick. 2 for upper M6 bolts, OD 14.5mm, ID 6.5mm. For lower M8 bolt: OD 17.5mm, ID 8.5mm. I preferred to have the inner diam a little bit extra (0.5mm)for easy assembly
This will make life easier when changing tire and the right caliper must be removed completely with bracket to be av´ble to remove the wheel. Fiidling with the washers, no thanks!