If your SRAM disc brakes are rubbing, there are a few things you can do to fix the problem. First, make sure that the rotor is mounted properly and that the caliper is aligned with the rotor. If everything looks good there, then check to see if your brake pads are worn out or damaged in any way. If they are, replace them with new ones. Finally, if all else fails, you may need to adjust the position of the caliper itself.