My front brake pads were sticking/dragging since I remounted the tires, and put in new pads. The bike has 40k miles of road grime, dirt, mud, haul road etc so it was due for a cleaning. I did not remove the calipers or lines but was able to pump them up a bit, 1 set of pistons at a time (stuck a screwdriver handle in there) & cleaned up the piston with Brake Clean and some real fine steel wool and a hard bristle brush. I was able to grip a couple of the pistons to rotate them, to clean the whole outsides. The others would not turn, but I was able to get them cleaned anyways. All pistons now move in and out easily. Not hard to do but time consuming. I wish I had one of those piston pliers to help turn the pistons from the inside. I did not find out about that tool until I talked to my buddy later in the evening. Maybe an hour or so total to do both sides. I also re-adjusted the suspension both front and rear per an old thread on this site. I did write down where I was and went to, so I can go back if need be. The biggest change in front was the spring preload on the front, now at 3 lines out. The rear shock is now cranked to 1 line below the red line, it has been on soft for the whole time. I also cranked up the compression to about 3/4 of the way towards hard . No time to test yet.