Originally Posted by A-Wind
Checking standard disk thickness in your RD03 shop manual will provide the answer.
As far as disk to caliper clearance goes: given your wheelbearings are OK, your wheel might not be in correct position due to wrong assemly or wrong distance-bushing.
I support checking issues like this in the kithcen.
Well the kitchen was the closest flat surface I could find.
The caliper floats freely on its pins. The pistons are not seized. I am in the process of replacing my front wheel bearing.
I've played with the idea that my wheel is assembled incorrectly, but I've gone by the shop manual and I've used the same bushings as were being used with the old disc, and am confident I've mounted them on the correct side.
As of right now, I'm just trying to find out if the OEM RD03 discs are suppose to be flat or not. The wheel bearings and steering head bearings are in the process of being replaced.