I just got delivery of a road bike with SRAM Red disc brakes. It was delivered with little inserts in the brake pads to prevent accidental squeezing of the lever when the rotor was not in.
When I put the wheels on, I noticed that the pads were too tight on the rotor even in the released position, so they were rubbing heavily (not because of misalignment but because of being too tight.)
So I did what I read online:
- Removed the wheel
- Removed the brake pads
- Gently used a flat-head screwdriver to push the pistons back in (the best I got was so that they were flush with the body of the brake caliper)
- Put the pads and wheel back on.
Unfortunately, when I squeezed the brake lever again, I could feel that the feeling got firmer and firmer for 2-3 squeezes, until, again, the brake pads would not recede from the "braking" position, and be in contact with the rotor at all times.
What can I do to fix this?