If your car stops fine but the outer pads are not working properly then you have a caliper problem.

The caliper is sticking. If the bolts/sliders are well lubed then your caliper may be rocking a bit and binding up due to the angle.

Forget your MC. Leave it alone. Figure out the problem with your calipers.

We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon